RawQuestions.txt

9
-1
-5
5
11
In grams, what is General Sherman’s mass (do not take branches into account)?
How much voltage, in volts, is measured in the resting potential of a neuron?
How long, in days, does it take a monster truck to fall 100 meters?
Kevin Tu, a 2016-2017 state officer, visits Antonio, Allen, Wendy, and Alicia! Kevin is equipped with muscles and a six(teen) pack, for those of you who don’t know him. Kevin sees that Antonio is holding an aluminum rod that has a radius of 0.5 inches, and Kevin claims he can break the rod by pulling it from two directions. How many Newtons of force does this require?
How much money is spent on elementary and secondary school students in the US? 
7
4
23
4
23
9^8
How many feet can an Olympic sprinter run (assuming he never gets tired) for the time a satellite signal can get to the Sun and back? (feet)
How many actual CRISPR Cas9 proteins could fit inside a 61x61x61 cm cube, assuming the proteins were 8x8x8 nm cubes?
How​ ​many​ ​connections​ ​does​ ​each​ ​neuron​ ​in​ ​the​ ​human​ ​brain​ ​have​ ​to​ ​other​ ​neurons?
Approximately how many carbon atoms are in this page of paper?
3
12
10
10
2
How many pennies would it take to pay for 100 full size Costco food court pizzas?
What would be the world’s population if all land above sea level was inhabited at the population density of Hong Kong?
If you gave every person in Pittsburgh $2018, how many ounces of milk could they collectively buy?
How many cans of pop would you need to fill the Michigan football stadium?
How many licks to the center of a Tootsie pop?
7
-12
-7
12
9
How many bankruptcies were filed in the United States since the crash of 2008?
If you stood still outside in the city of Chicago, trying to catch snowflakes on your tongue during an average snowstorm for 1 hour, what fraction of the snowflakes that fall on the city would end up on your tongue?
How many cubic meters of ink were used to print one copy of this test?
How many trees are in Russia?
How many times has the Earth orbited the Sun since its birth?
11
24
-21
4
8
How many Joules of solar energy reach the grass on the surface of Wrigley Field in July during a Chicago Cubs baseball game?
In millimeters, what is the distance across the Milky Way Galaxy?
The radius of a gold atom in units of astronomical units.
How many characters (including spaces) are in this entire test?
How many licks to the center of a tootsie pop?
-7
1
9
9
3
How many millenia does it take to drive from Centreville, VA to Blacksburg, VA
What is the density g/cm^3 of solid osmium?
How many total users does Facebook have?
How many snapchat pictures are sent in 24 hours in America?
How many artificial satellites are currently orbiting around Earth? (2019) 
-5
5
10
-4
24
Unfortunately, now you have a cold too. You sneeze really hard! What’s the ratio of the maximum distance that a sneeze can travel to the distance from Austin, TX to Anchorage, AK?
How many meters can be drawn with a typical #2 pencil?
How many sugar cubes would you need to stack to build a tetrahedron 100’ high?
How many grams of trace amounts of gold are naturally found in an average human’s body?
What is e to the power of 56?
5
-3
16
3
-69
How many students were awarded bachelor-level engineering degrees last year in the United States?
How long, in seconds, does it take light to travel from North to South across Kansas?
How many ants are in the world?
What is the pressure, in atmospheres, at the bottom of the Mariana Trench?
What fraction of the photons in the observable universe are emitted by a 1 W light bulb in a minute?
52
-2
-3
-18
4
How many gluons are in Earth?
You’re finally on the way back to the hotel to chill for a bit before the awards ceremony and dinner. Assuming all competitors and coaches are staying in hotel rooms, what percent of US hotel rooms are MIT Invitational competitors and coaches occupying?
In all the DNA in one human cell is unwinded and stretched out, how long is it in kilometers?
Most organic molecules are insulators. What is the conductivity of polytetrafluoroethylene, a polymer with the repeating unit -CF2CF2 -, in S/cm?
How many dinosaur fossils have ever been unearthed and catalogued?
8
2
-4
7
7
How many blades of grass are there on a standard sized football field?
How many different countries have a Burger King?
How long, in days, does it take a needle to fall from the top of a Giant Redwood tree, if there were no branches below it?
How many known species of plants are found in the Amazonian Rain Forest?
How many minutes does an average person sleep in their lifetime? (minutes)
2
10
42
3
15
Suppose two 5 kilogram masses are on either side of a pulley, attached by a very light string. As the mass of one of them is increased indefinitely, what will the tension in the string approach, in Newtons?
How many light-years is the visible universe?
What is the number of carbon atoms (as in diamond) it would take to fill Lake Superior?
What is the ratio of the volume that water occupies as steam (just beginning to boil) compared to water at room temperature?
How many milligrams of tea (not including water) are there in China?
10
6
-5
4
21
Elon Musk hopes that his Boring Company will eventually fill the subsurface with tunnels, and is currently aiming for roughly a 4-meter diameter. What mass of rock, in kg, would his company be displacing with a tunnel connecting Los Angeles and San Francisco in roughly a straight line?
How many alligators live in Florida?
The first mousetrap ever invented snapped shut in what fraction of a second?
If a vehicle used standard CDs for wheels, how many times would the wheels turn traveling across the Mackinac Bridge?
What would be the mass of the planet Mars in megagrams if it were made entirely of elemental gold?
5
6
-6
24
8
How​ ​many​ ​pounds​ ​of​ ​CO2​ ​are​ ​created​ ​by​ ​a​ ​plane​ ​flying​ ​from​ ​Boston​ ​to​ ​Houston?
How many E. Coli bacteria would have to lay end-to end (lengthwise) to span the length of a meter stick?
What is the diameter of a golf ball, as a multiple of the height of Mount Everest?
What is the maximum number of ping pong balls you could fit into Mars?
How many pop cans laid end to end would it take make a round trip between New York City and Los Angeles?
27
5
4
25
4 
What’s the Jupiter Mass in kg?
How many metric tonnes of fresh coffee beans would you need to brew a cup of coffee for every adult in the world?
How long in seconds would you have to hold the down button in order to get to the 654,321st row of an excel document?
How many hydrogen atoms are there in 1 mol of glucose?
How many miles of road are in the US interstate system?
-6
5
3
0
3
What is the probability of getting a royal flush in a standard 5-card poker hand?
If the surface of the Earth were covered in a mol of moles, how deep would the pile of moles be in meters?
What is the distance from Wellington, New Zealand to London, England divided by the length of the Suez Canal?
How long (in hours) would it take a Tyrannosaurs Rex to run a marathon, assuming they ran at top speed constantly?
Climbing stairs is an example of increasing gravitational potential energy. Heating up water requires thermal energy. Both forms of energy are measured in Joules. How many flights of stairs would the author of this question (mass = 85 kg) have to climb in order to equal the amount of thermal energy needed to raise a 40 gallon bathtub of water from room temperature (20 C) to a very hot 37.8 C?
4
3
-19
8
1
If I had a nickel for every time an American driver was pulled over for speeding, how many years would it take for me to become the richest person in the world?
What is the side length in kilometers of the smallest cube that could hold all of the water in the Pacific Ocean?
What is the number of electrons in a Coulomb divided by the number of Amps flowing through a 60 W bulb?
Your airplane masses 8 grams. How many fully loaded Airbus A380s is that?
How many questions are there in this test? (30 question test) 
5
7
12
9
7
How many middle school and high school students will compete in Science Olympiad this year in the United States?
How many people are talking or texting on their cell phone at this moment on this planet?
How many fish are in the ocean?
How many squares of toilet paper are in a 100-car train of box cars, each full of rolls of toilet paper?
Assuming they eat the average amount for Americans, how many chickens are consumed by the population of Pittsburgh annually?
4
14
4
1
8
How many avocados would you need to eat in order to consume enough calories to walk around the earth 4 times?
How many milliliters of sweat are produced in the United States every year?
How many verses are in the Bible?
How old are you?
How many red blood cells are needed to blanket the surface area of a tennis ball?
1
607
7
3
12
How many liters of milk does one lactating Holstein cow produce in a day?
What is 2^2017?
If every elephant in the world was replaced with an animal cracker version and eaten by a man named Michael, how many kilocalories would Michael gain?
What is the (Win)^(Losses) of the Rice University football team in the 2018 season?
What is the market cap of Alphabet?
2
6
8
38
-11
What is the tenth triangular number?
How many stray cats are there in New York State?
The combined weekly salary of the number of 1st year teachers in GA in pennies.
What is the mass of the supermassive black hole at the center of the Milky Way?
Unfortunately, Chris and Allen fail miserably. But Franklin shows mercy and gives them another chance. He tests Chris and Allen on acids and bases. What is the concentration of the hydroxide ion, OH - , in a typical orange?
0
12
13
10
12
What is the velocity of a sneeze in m/s?
How many carbon atoms would span the length of a football field?
If I were able to connect photons of visible red light, lengthwise, how many would I need to link in order to connect a point in this room to the North Pole?
Determine the height of the Great Pyramid of Giza divided by the thickness of a cell membrane.
What is the yearly cost of traffic accidents in the United States, in dollars?
-7
15
11
-7
6
You leave the Earth today to reach the center of our galaxy in 50,000 AD. You want to watch the movie Titaniconce so that it starts and ends at the same time as your trip. Assuming you are immortal and time dilation is a thing, at how many frames per second would you have to watch the Titanic?
What is the area of Alaska in square inches?
If a trillion dollars were represented with a stack of $1 bills, how far would the stack reach in cm
How radioactive are bananas, in Sieverts?
More Americans died in the Civil War than in any other war. About how many?
7
18
5
6
11
What is the radius in centimeters of the smallest sphere that could hold all of the water in Atlantic Ocean?
If Lake Superior were filled with Mountain Dew as opposed to water, how many Calories would be in the lake?
How many characters (spaces included) are in the 2018-2019 scioly rule manual?
The number of Earths that would fit inside of the sun?
How long does an average dog live in milliseconds?
8
9
4
17
11
What is the value (in US dollars) of a pile of $100 bills equal in mass to an average Asian elephant?
How many tons of CO2 were produced by the combustion of heptane of Problem 21? (Problem 21: How many gallons of gasoline were consumed by cars in the U.S. in 2003?)
This morning, Saturday November 18 at 5:42 am, the moon was in its New Moon phase as seen from Kansas City, MO. How many minutes until the next New Moon?
What is the density of a neutron star?
What was the video game industry revenue, in 2017? 
12
2
23
0
9
How many Snapchats were sent worldwide in 2018?
What is the ratio of oxygen gas to water vapor present in Earth’s atmosphere (by volume)?
How many electrons flow past a point on a circuit per hour when the current is 5 amps?
At what speed would a standard brick have to travel in order to have the same kinetic energy as a Ping-Pong ball travelling at a cheetah’s top speed? Give your answer in km/hr.
How many breaths does an average adult human take in a year? 
2
9
0
6
2
How many times is the word “Bee” said in the Bee Movie?
China's population is how large?
How many miles of C60 cassette tape would you go through if you were making a nonstop transcontinental drive from New York City to LA? Exclude flipping from one side to the other.
What is the GDP of the United States divided by the average cost of a car?
What is the speed of a sneeze in miles per hour?
3
17
4
-19
4
How much oxygen does a person consume in a day in liters?
How many drops of water would fit in Lake Erie?
What is the greatest number of baseballs you could fit on a Football field without stacking?
How many fortnights would it take to traverse the length of a grain of rice, longwise, travelling at the speed of light?
How many MSJHS Science Olympiad teams would be needed to equal the population of Vancouver, BC in 2014?
16
10
5
5
42
Estimate 6^21
2^35
How many sheets of standard printer paper would fit in the interior of a Volkswagon Beetle?
How many total pounds of bananas are consumed per year by all of the people on the continent of Africa?
How many molecules of water are in a Lake Erie?
14
32
28
4
3
During the awards ceremony, Allen is extremely nervous so he starts doing stuff with his Rubik’s cube. Alicia comments, “Rubik’s cubes are boring.” Allen notes that Rubik’s cubes can never become boring since there so many different possible configurations. If Allen averages 201.7 seconds to solve a Rubik’s cube, how long would it take him to solve all possibilities in years?
How many molecules of water would be in an Olympic-size swimming pool?
How many atoms are in the human body?
How many mg of sodium are in 24 24-packs of Coca Cola?
How many feathers are on a turkey?
19
-8
8
8
4
How many water molecules are in a typical snowflake?
How many centimeters are worn off a car tire during one revolution of the wheel?
How many minutes are there in a century?
How​ ​many​ ​pieces​ ​of​ ​popped​ ​popcorn​ ​would​ ​it​ ​take​ ​to​ ​fill​ ​an​ ​olympic​ ​sized swimming​ ​pool?
How many 8-cut pizzas would it take to provide two slices to every 2016-2017 New York State Science Olympiad competitor?
-26
4
11
-6
2
What is the weight, in Newtons, of a carbon atom on the moon?
As a factor, how much more is the price of an Engineering degree from an average university than the price of a McDonald's double cheeseburger?
How many millimeters does the planet Mercury travel during a performance of Beethoven’s 9th symphony? Use Mercury’s average orbital speed.
What is the probability that you will be struck by lightning today?
How many words are there on this test?
1
7
5
4
-3
Of the quantity found in the question above, n% is used to convert protons and electrons to neutrons. What is n? (Question above: How much energy, in Joules, is released in a typical type II supernova from gravitational potential energy?)
How many years ago did the last dinosaur go extinct?
What is the ratio of the solar energy reaching the Earth's disk to the average electrical energy consumption of Earth's inhabitants?
How many total students does the University of Chicago have?
A can of coca cola contains how many pounds of dissolved gas? 
5
8
2
12
8
That’s why we have the not posting How many times larger is the sun than the Earth?
According to the 2016 US Census, how many households are in the United States?
How many Main Streets are there in New England? (N.B. New England is comprised of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut)
What is the volume of air breathed in by the whole US population each month in cubic meters?
How many marbles would fill a Olympic size swimming pool
6
1
3
12
5
What fraction of a 2-liter sprite bottle can a single grain of rice fill up? (bottles)
How many atms are there in one lb/in^2?
What is the word count of the Declaration of Independence?
How many total seconds of video were uploaded on YouTube in 2017?
What is the density at the center of the Sun?
8
-5
23
8
5
How many whiskers from feral cats are there in LA county?
Determine the width of a single HIV virus divided by the length of an average red ant.
How many Hope diamonds could be made from carbon content of the Earth?
How many humans were born since last year's national Science Olympiad Tournament? (2019 Nationals)
How many hair follicles are on an average adult’s scalp? 
2
8
26
7
10
Since the release of Pokemon Go, players in the United States have collectively walked how many roundtrips between the moon and Earth? (2019 GGSO Q25)
What would be the total mass of a 2m high brick wall along the entire US-Mexico border?
2^87
How many golf balls will fit in a 747?
What is the population of the world? 
614
17
1
2
22
There are 300 distinguishable penguins that line up to receive a hug from a polar bear. How many different ways can the penguins line up?
How many angstroms are there between the center of South Africa and the center of Australia?
How long, in years, would it take a sloth to travel on a straight path from New York to Los Angeles?
Or perhaps you would like something more relaxing, like taking a sailboat across the Atlantic. How many hours of vacation time would it take you to sail all that way?
What is e^50?
6
7
7
11
-1
United States contains how many square kilometers?
How many times will the average teenager's heart beat in a year?
How many handcuffs would it take in order to create an interlocked chain from Istanbul to Beijing?
How many DVDs stacked together would it take to reach the moon (assume they are stacked like a ring)?
What proportion of all human proteins are cell-surface receptors?
5
26
8
-8
4
What is the mass of a molecule of Red Dye #40 in terms of the mass of one electron?
In Joules, how much energy is released by the Sun every second?
How much money (dollars) was spent on advertising during Super Bowl 52?
What is the repulsive force in Newtons between two protons forced within one Angstrom?
Consider a circle divided into regions by drawing lines between n points, such that no three lines intersect. If there are 20 points around the circle, how many regions will be formed?
19
15
26
7
9
How much electrical energy in joules does the US use in one year?
If the volume of the Earth was comprised solely of water, what would the mass of earth be in grams?
How many calories does the sun output per second?
Forrest Gump ran from the coast of Maine to Los Angeles. How many steps did he take?
How many golf tees could we make out of a giant sequoia tree?
21
24
2
5
15
What is the value of e^50?
How many ppm of carbon dioxide gas is processed in a year of photosynthesis by all of the trees on earth?
How many times does lightning strike the earth each second?
How many living people in the United States have a first name of Allen?
How many calories are in a teraliter of maple syrup?
-2
11
5
-4
8
How many miles of eyelashes are shed by a person over their entire life?
How many total kilometers were travelled in 2015 by all of the vehicles on Kansas roads, streets, and highways? (vehicle - kilometers)
If you make the dubious decision to obtain all of your caloric needs by eating jelly beans and somehow successfully avoid death by malnutrition or diabetes, how many jelly beans will you consume in a year?
You’re having a great time at hot pot because it’s, ya know, hot pot. There’s also a few vegetarians on the team who have fun pointing out things like “beef tongue” and such. Unfortunately, there’s only so much variety for them. Napa cabbage prefer a certain soil pH in order to obtain sufficient calcium, magnesium, and other nutrients. How much more concentrated are hydrogen ions in this perfect soil than in a 1 M solution of acetic acid?
In an average lifetime, how far will you walk in meters?
16
7
-4
26
24 
How far, in centimeters, will light travel in one fortnight?
How many square meters does metro-Atlanta cover?
The diameter of a DNA molecule in inches?
How many atoms of nihonium would have an equivalent mass? (What is the average mass of an American male over the age of 20 in picograms?)
What is the mass of the Sun in gigagrams? 
3
-5
16
9
6
The bee hummingbird is the world’s smallest bird. How many bee hummingbird wingspans fit into the wingspan of an airplane?
How many seconds does it take light to travel from a lighthouse to a ship that is 1 mile away?
How many March Madness brackets would each member of the US Congress have to fill out in order to guarantee that someone has a perfect bracket? You can assume that each member of Congress fills out the same number of brackets and that all filled-out brackets are unique.
If you were counting up, starting at 1, at the tempo of Staying Alive by the Bee Gees, how long would it take, in hours, to count up to 45 trillion?
Estimate the population of Colorado.
-14
3
8
6
11
What is the atomic radius of Carbon if measured in miles?
How many gallons of milk does a dairy cow produce each year?
How many pieces of space debris smaller than 1 cm floating around the Earth?
Last but not least, how many boards could the Mongols hoard, if the Mongol hordes got bored?
What is the combined weight in Newtons on all of the spiders on Earth?
16
11
13
-10
10
How much energy in joules are required to accelerate a tennis ball to the speed of light?
What is the height of Sear’s Tower in nanometers?
How many square feet is the country of Argentina?
Approximate the value of√(100+√(100+√(100)^-7)^-8)^-9.
Bubbles the orangutan is also cursed with eternal life until she can correctly sort a randomly shuffled set of flashcards containing one of every word in the English language into alphabetical order. Bubbles is somewhat smarter than Bogo and approaches this task by going through the entire set and comparing the card she is looking at with the one immediately before. If that card is alphabetically before the sequentially previous card, she swaps their two positions and moves on to next card. When Bubbles reaches the end of the set, she goes back to the beginning and starts again with the updated order. Bubbles practices on a 10 card set of single digit numbers instead of words and after optimizing her technique, she can sort the practice set on average in just 100 seconds. With this knowledge, how many seconds should it take for Bubbles to sort the entire English language?
-6
-9
1
26
22
What is the gravitational pull in Newtons between Alicia and Wendy when they stand 2 ft apart?
What is the volume of toilet water, in petaliters, flushed by the average American male in his lifetime?
What distance, in Mm, would the pies from problem #25 stretch if laid out side-by-side (assume 10 inch diameter pies)? (Problem #25: How many pumpkin pies are sold between November and December in the US each year?)
Using just the letters in the alphabet, how many unique 26-letter sequences are possible?
How many grams of salt are in the Pacific Ocean? 
4
12
3
9
5
What is the elevation is Mt. Everest in feets?
How much money will be spent on Black Friday shopping this year? (2018)
How many characters(numbers, letters, etc.) are on this test? (50 questions)
How many active users does Facebook have? (2019)
How many tower cranes are currently in active use for construction projects around the world today? 
9
14
-1
26
25
Freshwater is 0.223% salt by weight, so how much salt could you produce in kg from all the water in the Charles River?
Start with a dollar. Double it every day. In 48 days, you will own _________ dollars asset.
What is the slowest you have to travel at the equator to constantly stay in daylight in miles per second?
How many oxygen molecules are in a cup of water?
What is 20^19? 
1
8
4
0
9
How old is the person who wrote this test?
How many tons of food are wasted by Americans in any given year? (tons)
How many helium balloons are needed to carry a man down the street if he is hovering just a few feet off the ground?
At what speed would a standard brick have to travel in order to have the same kinetic energy as a Ping-Pong ball travelling at a cheetah’s top speed? Give your answer in km/hr.
How many square inches of pizza are consumed during the super bowl?
14
3
1
2
4
How many cells are there in the human body?
How many Q-tips high is the Statue of Liberty?
How many people would you need in a room to have a 50% chance that two of them share a birthday?
How many megabytes are needed to store the complete Human Genome?
How many languages are still actively spoken today around the world?
9
14
2
4
2
What​ ​is​ ​the​ ​diameter​ ​of​ ​Jupiter,​ ​as​ ​a​ ​multiple​ ​of​ ​the​ ​diameter​ ​of​ ​a​ ​golf​ ​ball?
Circumference of Earth’s orbit in mm.
How many instrument strings are in the Boston Symphony Orchestra?
How much chemical energy in joules is stored in a common D-battery?
Unfortunately, one of your other teammates is lactose-intolerant. How many grams of lactose are in 1 gallon of unprocessed cow’s milk?
4
9
20
8
9
Number of hours a common swift is able to fly without stopping.
How many golf balls would it take to circle the Earth at the equator?
How many water balloons can you make out of the Earth’s entire ocean?
How many grains of long grain white rice is produced on one acre of well farmed land per year?
How many seconds has it been since we landed on the moon?
-26
4
20
1
9
What is the mass of 1 atom of Nitrogen in kg?
How many reams of paper can be made with General Sherman?
In Newtons, what is the gravitational force on the moon due to Earth?
How many pages is the Division C rules manual?
How many fortnights ago was the end of the Cretaceous period?
7
5
15
10
5
How many motor vehicle fatalities have there been in the United States in total?
Calculate the escape velocity of the Sun, in miles per hour.
How many sheets of paper would it take to get to the sun if you stacked them on top of each other?
How many years is the lifetime of a sun-like star?
How many hairs are on the average human head?
13
10
5
13
4
In U.S. History, we were taught that our great founding fathers signed The Declaration of Independence to signify our separation from Great Britain. One of our founding fathers, Lil’ Pump, was so hyped up about it that he started singing the famous song “Gucci Gang” non-stop since that day. Assuming that Lil’ Pump is immortal, how many times has he said the phrase “Gucci Gang”, excluding ad-libs, since the signing of the Declaration of Independence?
What is the mass of the Great Pyramid of Giza in kilograms?
Strictly from calories, how many M&Ms would a person have to eat per year to survive?
How many standard popsicle sticks, glued end to end, would it take to build a bridge from the earth to the sun?
What is the sum of all the ages of everyone competing in this invitational today? (U Chicago) 
15
7
-7
4
-3
How many dollar bills would it take to cover the land mass of the United States?
Add the high school students in the U.S. with the number of college students in Canada.
Asa factor, how much more is the price of a 15-lb bag of basmati rice than the price’of an Airbus A380 jet airliner (seats up to 853)?
What is the number of US dollar coins it would take to fill a basketball?
What is the mass, in grams, of a cubic centimeter of air?
11
7
8
10
-3
Howmany US dollar bills would it take in order to create a stack from Stockholm to Mumbai?
How many kernels of popcorn are needed to fill a typical bedroom?
How many words does the average person speak in his/her lifetime?
What does a 24 inch beach ball weigh, measured in units of grains of birch pollen?
Compute (1/(π^π))^2.
15
5
1
4
33
How many liters of 0.15 m sodium hydroxide solution would be required to neutralize a Lake Tahoe filled with 1.0 m hydrochloric acid solution?
How many liters of gasoline does the average American consume in his/her lifetime?
How many milliliters is a shot?
If you were to convert the energy in bananas to fuel, how many bananas would it take to fuel a car to drive from New York City to Los Angeles?
If the sun was replaced with maple syrup, what would its mass be in grams?
3
29
9
30
21
How many restaurants have earned a Michelin star?
How many atoms of iron are contained within a school bus?
How many standard Rubik's Cubes would fit in a Hindenburg class airship?
What is the 32 to the 20th power?
How many liters of water are in earth's oceans? 
7
12
48
21
1
How many dogs were owned as pets in the United States last year?
How much was spent online during Black Friday 2018, in pennies?
How many yoctometers are in a yottameter?
How many new, unsharpened, standard pencils laid end to end would it take to reach from the Sun to the Galactic center of the Milky Way?
Compute the acceleration of a sneeze divided by the acceleration you experience in a cable elevator.
4
89
21
7
7
How many high school Science Olympiad teams are there in the US?
How many different rankings of 64 teams are there [#]?
What is the total value of money on a chessboard if one puts one $100 bill on the first square in a chessboard and doubles the number of $100 bills on consequent squares until all squares are filled?
How many tidal breaths (normal breaths) would it take to fill a Goodyear Blimp?
If all of Jeff Bezos wealth was converted into one dollar bills that were stacked flat on top of each other (not end to end), how high would the stack be in meters?
9
-4
8
15
22
How many cubic feet of water are there in Lake George (New York State)?
What is the electric flux of of a Gaussian Surface that has a Qencl of 1 femtocoulomb?
What is the net worth of the richest K-Pop star?
The amount of bacteria present on one square centimeter of human skin
In cm, how much distance has the earth travelled around the sun since the dinosaurs went extinct?
13
8
4
5
18
How many hair straighteners would equal the power of a hurricane?
How many dollars did The Last Jedi bring in on its official opening day?
What is the recommended number of chest compressions divided by the time it takes a snail to go a mile?
How many steps does it take for an average human to run a marathon?
How many playing cards would it take to fill up the grand canyon?
-6
16
21
7
9
How many hours does it take light to travel from Orlando to Boston?
How many US dollar bills are needed to blanket the surface area of the Indian Ocean?
During a heavy rainstorm you hold your palm out flat; how many molecules of water hit your hand per second?
How many rotational cycles can a tire undergo during its useful lifetime?
How many bushels of corn did Kansas produce last year?
24
12
9
7
7
How many toothpicks would fit in the Atlantic Ocean?
How many M&Ms would you need to fill the Empire State Building?
How many seconds would it take a common snail to travel from Boston to Washington D.C.?
The diameter of a chromium atom is about 2.4 Å (10 Å = 1 nm). How many chromium atoms would have to be lined up to span 1.0 cm?
How many dogs were owned as pets in the United States in 2017?
-11
4
7
-5
16 
The permittivity of free space, also known as vacuum permittivity, is a physical constant. It is the capability of the vacuum to permit electric field lines. This constant relates the units for electric charge to mechanical quantities such as length and force. (Measured in standard SI units of Farad/m)
How many hours would it take a tortoise to walk from Bangor, Maine to Santa Fe, New Mexico?
What is the radius of the Earth measured in meters?
What fraction would the weight of the answer to question 3 be of the number of pounds of avocados produced in california each year? (Q3: How many avocados would you need to eat in order to consume enough calories to walk around the earth 4 times?)
What is the length of the universe in light minutes? 
88
2
4
8
25
How many electrons are there in the Universe?
Given that the internet is essentially made up of electrons in constant motion, what is the weight of the internet measured in grams?
How many polar bears are on the planet?
How many emails are sent in an hour?
What is the total number of electrons found in 64g of methane gas?
26
9
2
3
59
How many Oxygen molecules are there in a cup of water?
What is 230 × 123 × 161 × 538?
If a mass of methane equivalent to the mass of the entire human population of the United States was combusted, how many megatons of energy would be released?
What height of water in cm generates the same amount of pressure as a 760 mm column of mercury?
3^125
10
3
32
3
13
If you had enough large 18-inch delicious pepperoni pizzas to cover Green- land completely, how much human bodies’ worth of calcium would be in those pizzas?
What is the volume of a string of grade 304 1 mm piano wire that spanned from the Sun to Jupiter in gigameters^3?
What is the mass equivalent of an adult housefly measured units of Jupiter masses?
How many words are there total on this test?
How many red blood cells are there in the average human body?
12
28
11
-5
8
How many Number 2 Ticonderoga unsharpened pencils are needed to reach the Sun?
How many atoms are in your body?
How many stars are there in the Milky Way?
What is the probability of suffering a heart attack while running a marathon?
How many blades of grass are there on the playing area of a football field?
2
5
7
5
24
Fastest human reaction time. (milliseconds)
How many minutes would it take a running water faucet to fill the inverted dome of the US capital?
If​ ​every​ ​grain​ ​of​ ​sand​ ​on​ ​the​ ​Earth​ ​was​ ​a​ ​marshmallow​ ​(normal​ ​sized​ ​marshmallow;​ ​not jumbo),​ ​then​ ​how​ ​many​ ​olympic​ ​sized​ ​swimming​ ​pools​ ​would​ ​be​ ​able​ ​to​ ​be​ ​filled​ ​by​ ​that amount​ ​of​ ​marshmallows?
How many kilograms of food does the average American eat in their lifetime?
How many carbon molecules are in a white cotton t-shirt?
-5
6
3
31
17
How long, in days, does it take a quarter to fall 100 meters?
How many cars are in Houston?
How many Walmart stores are in the US?
How many visible light photons per second would you have to reflect off a solar sail to accelerate a school bus at one g?
How long in nanometers are the arteries, capillaries, and veins in an adult human body when laid end to end?
3
10
20
8
24
What is the mass of water, in grams, equivalent in volume to $100 of nickels?
How much does the most expensive aircraft carrier cost?
If female gnats maximize their reproductive prospects, and all existing insects were gnats, how many gnats could the female gnats in the world produce in one lifespan?
If each tree at Rice University is provided 40 gallons of water per day, how much water in gallons is needed to water all the trees at Rice University for a decade?
How many carbon atoms are in one mole of carbon atoms?
3
25
10
-5
-10
If an average car takes a trip from Los Angeles to New York, how many kilocalories does the gas from this trip contain?
How many 18-wheeler trucks can fit in the Sun?
What was North Korea’s GDP in 2017?
How many miles are in an inch?
Divide the width in millimeters of a strand of human hair by the U.S population size.
28
9
9
4
5
How many zeptoseconds are in a year?
The Otis-Albert field in Southwest Kansas extracts gases that average 2.0 percent He. What mass, in grams, of He can be extracted from a well that produces 500 million cubic meters of natural gas?
How many trees in the Adirondack Park?
Approximately how many commercial airplanes are in the sky over the US right now?
How many milligrams comprise the average adult human body?
15
10
8
1
4
How many snowflakes would it take to completely blanket the entirety of Yale’s central campus with a cubic foot of snow?
How many human births have there been since the year 1900 CE?
How many acres of land is in Texas?
How many prominent figures were assassinated in El Salvador during the 20th century?
If the entire population of the US was in line to order a sandwich at Subway at the same time, how long would the lines be?
2
-83
6
6
1
How many Hiroshima bombs would be equivalent in energy to the burritos Chipotle sold in 2015?
How many universes can fit inside an average cat?
How many words are there in a standard Merriam-Webster Dictionary?
How many meters is it from New York to Los Angeles?
If the company is able to create 10 sheets of paper per second, how many hours would it take to convert General Sherman into paper?
22
-40
5
9
3
How many prime numbers are there less than 1 septillion?
Call the electrostatic force of attraction between an electron and a proton separated by a distance of 1m A. Call the gravitational force of attraction between the same particles separated by the same distance B. Compute B/A.
Because you are a competitor of culture, you only compete in Inquiry & Nature of Science events. Let X be the set of letters contained in the combined names of all 2018 Inquiry & Nature of Science events. How many English words only contain letters in X?
How many times will the average person’s heart beat in his/her life?
Suppose a businessperson flew roundtrip between New York City and San Francisco once every week for 15 years. How many chest x-rays worth of radiation would this person have accumulated?
19
9
5
9
9
What is (69 choose 42)?
What is the voltage of the average lightning bolt?
How many light years are there in 30 kiloparsecs?
If every person in the world exhaled at the same time and we collected all the exhaled carbon dioxide, how many yards would we need to drive a standard American pick-up truck in order to match this quantity of carbon dioxide through the burning of gasoline?
How many cubic centimeters of diesel fuel are consumed by a cruise liner the size of Queen Elizabeth II on a voyage of 100 nautical miles?
14
2
4035
8
-11
How​ ​many​ ​king​ ​size​ ​beds​ ​would​ ​it​ ​take​ ​to​ ​​blanket​ ​​the​ ​surface​ ​of​ ​the​ ​Pacific​ ​Ocean?
How many spines does a small cactus have?
Due to the height disparity, Antonio crushes Chris with the final score being 100^2018 to 0. During the game, Antonio scored either two-pointers or three-pointers. How many possible combinations of two and three pointers (disregarding ordering) could Antonio have made?
How long of a line could you draw with a standard pencil, in mm?
What percentage of Earth’s total mass is made up of humanity?
2
-6
7
7
9
How long does it take to fly around the world in hours?
What is the average distance in millimeters between the particles of an ideal gas at STP?
What is the population of left-handed women in Japan?
What is the amount of bean production in the united states in short tons per year?
How many basketball shots are attempted each year in America?
9
31
2
6
6 
How many pizzas are sold in the US each year?
How many nanometers are in a megaparsec?
How many planet earths could you line up along the equator of the sun?
How many atoms thick is a piece of 65lb weight paper [#]?
What is the least number of General Shermans needed to reach the moon from Earth?
10
10
1
4
1
How many centimeters of blood vessels are in the average adult human?
How much land in square meters would be needed to supply US Electrical needs in solar energy?
The number of live births in Haiti minus the number of deaths
How many Americans are affected by Hemophilia?
If Peter Salovey decided to use Yale's endowment to buy real estate at the same price that Jefferson bought the Louisiana Purchase (without inflation), how much land could Peter Salovey buy, in Earths?
11
24
14
7
1
How many gallons of gasoline were consumed by cars in the U.S. in 2003?
Consider the combustion of propane (C3H8). How many moles of propane would you need to combust in order to release the same amount of energy that the Sun outputs in an hour? Assume that oxygen (O2) is in excess and that ∆H = −2221 kJ/mol.
How many Olympic-sized swimming pool can the Atlantic Ocean fill?
Consider all the water molecules from the previous question. If they were all placed side by side, what percentage of the distance from New York City to Chicago would that cover? [Previous question: How many water molecules are in a single drop of pure water?]
How long would it take an ostrich to run the distance from Seattle to San Diego, in hours? 
14
16
3
4
24
What is the diameter of the sun divided by the diameter of a human red blood cell?
How many liters of water flows out of the Amazon River each year?
Bill Gates could fully fund how many construction projects to renovate Speedway Mall at UT?
How fast (in miles per hour) would a satellite be traveling if it were 100 miles above the surface of the earth and completed one orbit every 90 minutes?
How massive is a mole of cats in kilograms?
-5
3
2
15
1
The lower limits of human hearing in MegaHertz
How many peanuts does a 16 oz. jar of natural creamy peanut butter contain?
How hot could the Sun’s energy outputted in a second heat up the Atlantic Ocean? Assume all of the Sun’s heat energy goes directly to warming up the ocean.
How many pennies, lying flat, would it take to cover the area of Kansas?
If you jumped on a planet with the mass of the Sun, how high above the ground could you jump in millimeters?
4
8
4
5
6
How many quills does an average porcupine have?
The Kilocalories burned by 150 sedentary 150 lb females in 150 days
Per capita income in the Pittsburgh
How many eggs are consumed in the city of Stockton each year?
How many pennies would you need to stack to reach the height of Mount Everest?
1444
7
7
9
28
Estimate 613!
If we placed Nissan Quest minivans (2001 model) from head to tail, how many would we need to wrap around the equator?
How many turkeys were consumed during November and December in 2012 in the United States?
How many people in the world are left-handed?
How many toothpicks does it take to travel across the observable universe?
1
9
7
7
6
What is the distance of the ground state electron in Hydrogen to the nucleus in picometers?
If a major earthquake occurred in San Francisco, California, how many milliseconds would pass before the resulting shear wave reached Syracuse, New York?
How many golf balls would it take to fill an olympic sized swimming pool?
How many Americans travelled for Thanksgiving in 2017, according to AAA?
How many likes does the most-viewed Youtube video in 2009, The Evolution of Dance, currently have?
6
4
5
28
5
How many cans of Dr. Pepper would it take to completely fill the International Space Station with Dr. Pepper?
You go back to campus and its time for the award ceremony! You see Kresge Auditorium and, amazed at the engineering, you are reminded of MIT’s mascot, the beaver. How many aspen trees could a beaver gnaw down in the gestation period of a beaver, assuming it never stops and always works at peak performance?
How many shoelaces would it take to span the length of the Suez canal?
How many atoms are in the human body?
How many comments are written on Facebook on any given day?
17
27
15
18
32
How many rolls of “Duck Brand 394468 All-Purpose Duct Tape” would it take to completely cover the surface of all the planets in our solar system? (hint: Pluto is not a planet).
Estimate the number of Oxygen molecules in the room. [Hints: Air is typically 21% oxygen. One mole of an ideal gas @ S.T.P. occupies 22.4 Liters of volume]
If you wanted to create a full-scale model of the orbits of all 8 planets in the solar system using paper clips, how many paper clips would you need?
How many attoseconds does it take for light to travel from the Earth to the moon and back?
21^(4!)
12
13
8
2
15 
What is the current best estimate of the total number of fish in the ocean?
How many prime numbers are there between 1 and the number 1 quadrillion? 
On average, how many times would you have to roll a standard six-sided die to have it show a six, ten times in a row?
How many licks does it take to get to the center of a lolly pop?
How many Escherichia coli bacteria, arranged end to end, would you need to reach across upstate New York?
4
10
9
6
7
How many standard 2x2 Lego bricks do I need to stack on top of each other to create a stack as tall as the Empire State Building?
What is Princeton’s endowment [$]??
How many gallons of paint would it take to fully cover Switzerland in a coat of paint (assuming Switzerland is a flat country)?
What is the length of an average red ant, as a multiple of the thickness of a cell membrane?
How many high school students are there in the U.S.
19
8
17
-3
14
How many possible combinations are there for a standard 3x3 Rubik’s cube?
Yo mamma so fat, she took all the Big Macs sold in the US last year and gobbled ’em right up! How many pounds of fat are in yo mamma now? Assume that yo mama ain’t burning any o’ those calories, cuz ain’t nobody got time for that!
Determine the length of the Nile river divided by the radius of a helium atom.
How many years would it take an empty cement mixer truck to travel from Stockholm to Moscow?
How​ ​many​ ​US​ ​quarters​ ​would​ ​it​ ​take​ ​to​ ​stack​ ​them​ ​from​ ​the​ ​Earth​ ​to​ ​the​ ​surface of​ ​the​ ​Sun?
15
6
5
4
0
How many microseconds ago was the programming language Python first released?
On Earth, how many millimeters long would the string on a simple pendulum have to be to have a period of one minute?
A​ ​new​ ​material​ ​is​ ​discovered​ ​that​ ​can​ ​withstand​ ​9000N​ ​when​ ​evenly​ ​distributed​ ​over​ ​a 1mx1m​ ​area.​ ​How​ ​many​ ​evenly​ ​distributed​ ​pennies​ ​(made​ ​from​ ​zinc)​ ​would​ ​it​ ​take​ ​to exceed​ ​what​ ​the​ ​material​ ​can​ ​withstand?
How many Taco Bell restaurants are there in the US?
What is the maximum value of the sine function?
10
1
25
6
-4
How many pounds of snow is all the snow in problem 3? (Problem 3: If 6 inches of snow fall on Washington, DC, how many cubic feet of snow is that?)
Unfortunately, the awards ceremony has been going on, you haven’t placed and your last event, Write It Do It, is coming up. You really want that medal and at this point you’d even pay for it. How much Ethereum would it cost to purchase a 2016 Rio Summer Olympics gold medal?
What is the mass of the Earth measured in kg?
How many times can the ball in a ballpoint pen spin 360 degrees before the pen runs out of ink?
If the Sun’s volume were to increase by the volume of the Earth, what percent would its volume increase? 
7
-24
12
8
7
How many ping pong balls would it take to cover the “roof sails” on the Sydney Opera House?
And they do indeed tie with all perfect scores! This is nontrivially perturbing,” Antonio says. “The chances of this occurring is higher than all four of us getting hit by lightning at this moment,” claims a not-so-impressed Allen. “You’re wrong,” says Franklin. What is the probability of all four officers are hit by lightning independently on a rainy day?
How many Google searches were there in 2017?
How many phone calls are going on at any given point in time across the world? (phone calls)
If all the land in mainland America was divided equally among all its inhabitants, how many square inches would each person get?
4
3
8
6
17
What is the diameter of Jupiter, as a multiple of the height of Mount Everest?
How many gallons of water does it take to produce a dozen eggs?
Convinced that Franklin has forgotten about them, Allen and Antonio decide to head back to the States. When they return, they find that good ol’ faithful Frank Wu had been waiting for them all along. Due to Antonio’s outstanding athleticism in swimming and walking, Franklin awards him a life-sized pure gold statue of Franklin himself. How much is this statue worth in dollars?
How many possible configurations of a 2x2 Rubik’s cube are there?
What is the age of the Earth in seconds?
17
25
17
9
11
What is the number of playing cards that you would have to lay on the surface area of the Earth in order to fully cover it?
How many atoms are in a pound of sugar?
How many ping pong balls are needed to blanket the surface area of the Atlantic Ocean?
How many adult male African bush elephants equal the weight of the US national debt in pennies?
How much does Bill Gates’ net worth weigh in 10 dollar bills? Express your answer in grams.
3
9
22
14
-15
In the entire history of the Academy Awards, how many movies have been nominated for Best Picture?
What is the distance from Pluto to the sun in kilometers?
What is the total gravitational force on Earth, in newtons?
How many cells would fit in a gallon
What is the arc length of the earth in picometers ?
5
2
8
10
6
What is the total length of the Harry Potter movies measured in seconds?
The number of sheets of paper used by students in an English class to write a 30 page term paper
About how many pounds of chocolate are sold the week leading up to Valentine’s Day in the US?
How much carbon dioxide does the average American breathe out in his/her lifetime, in milliliters?
What is the area, in square miles, of Alaska?
86
4
-16
-25
21
How many sugar cubes would fit in the entire universe?
How many lumens per square foot does the Sun emit on Earth?
What is the diameter of a Helium atom divided by the diameter of the Sun?
What is the magnitude of the acceleration of the Earth due to the gravity of an apple near Earth’s surface? (m/s^2)
How many grains of sand exist on earth?
15
7
5
10
12
What is the mass of the ping pong balls that can fit in the volume of the amount of red blood cells produced by the human population in the amount of time the average person keeps their eyes closed in one lifetime?
What is the population of the world’s 70th most populous nation?
How many hairs are on the average human head?
How many ounces of turkey were consumed in the United States last year?
What is the military budget of the United States, in US Dollars?
2
2
119
2
-1
How many Hot WheelsTMare sold in Austin every day?
How fast can a Maglev train go in mph?
What is 137^56?
How many kilometers in width is the Amazon River during the wet season (at its widest)?
What is the growth rate of bamboo in furlongs per fortnight?
15
9
6
-3
9
How many hair follicles are there on the world’s population? Assume humans only have hair follicles on their heads.
How many breaths does the average human take in a lifetime?
Determine the distance from Pluto to the Sun divided by the diameter of Pluto.
Malcolm Brogdon has the highest free throw percentage in the NBA at 95.6% when this test was written. What is the probability that he misses two free throws in a row, assuming that each free throw is an independent event?
How​ ​many​ ​jumbo​ ​marshmallows​ ​does​ ​it​ ​take​ ​to​ ​equal​ ​the​ ​weight​ ​of​ ​General​ ​Sherman​ ​(a sequoia​ ​tree​ ​and​ ​the​ ​world's​ ​largest​ ​tree)?
8
11
26
1
9
How many blades of grass are in a football field between end zones?
How many gallons of water are produced by the heptane combustion of Problem 21? (Problem 21: How many gallons of gasoline were consumed by cars in the U.S. in 2003?)
How many electrons are there in a garbage can full of air sitting otherwise empty outside a student dormitory at Duke University.
How many times can light travel around the earth in one second?
How many times does an average person blink in their lifetime? 
-12
6
2
2
20
What is the gravitational attraction, in Newtons, between a 4-year-old kid and their Hot Wheels toy car when they’re at dinner and the car is in the toy box in the adjoining room?
How many cubic yards of concrete were used to build the Hoover Dam?
How many Dalmatians are in the Walt Disney film about Dalmatians?
How many moon does Saturn have?
How many cans of soda could be produced from the fresh water frozen in the Earth's polar ice caps?
10
-7
11
5
6
On average how many quarts of popped popcorn do Americans consume each year?
What is the gravitational force (in newtons) between two adjacent pieces of paper in a closed book?
What is the area of Kansas in m^2?
How many M&Ms are needed to blanket the surface area of a queen-size mattress?
At this very moment, throughout the skies around the world, how many people are in the air flying onboard an airplane?
0
19
4
3
23
What is the height of the Great Pyramid of Giza, as a multiple of the height of the statue of liberty?
How many electrons are in a ‘normal-sized’ lightning bolt?
How many stars are visible from Earth, to the naked eye?
How many Tesla Model S cars could you buy with the money used to build Carnegie Mellon’s David A. Tepper Quadrangle?
How many Skittles would it take to fill the Earth?
-9
12
5
4
20
What​ ​is​ ​the​ ​length​ ​of​ ​an​ ​average​ ​red​ ​ant,​ ​as​ ​a​ ​multiple​ ​of​ ​the​ ​length​ ​of​ ​the​ ​Nile​ ​river?
How many teaspoons of concrete are needed to fill the volume of the Hoover Dam?
How many servings of New York-style cheesecake would be needed to balance the total number of calories collectively burned by all the runners of the New York City Marathon each year?
What is the greatest number of baseballs you could fit on a Football field without stacking?
How many joules of energy do humans use annually?
12
-3
12
7
-3
What is the value in dollars of all of the owner-occupied houses in Florida?
What is the wavelength for red light in millimeters?
What is the number of US dimes it would take to make a full scale model of the Empire State Building?
How many drops of water does it take to equal the weight of a grand piano?
What percentage of the global Polish population lives in New Zealand?
-1
9
27
5
11
How much depth in meters would a lake lose per year if it uniformly covered an area of 50 km^2 and supplied a local town with a population of 40,000 people? (ignore any additions from rain etc)
How many pizzas are sold in U.S. each year?
How many ways are there to shuffle a deck of cards such that all 4 of the same number are next to each other? (all 4 aces are adjacent, all 4 twos are adjacent, all 4 Jacks are adjacent, etc.)
What is 1 atmospheric pressure in Pascals?
How many humans have existed on Earth?
6
7
18
6
5
How many results are given when “Fermi Questions” is Googled?
How many ping pong balls can fit into a Boeing 747?
If the entire earth was covered with solar panels, how much energy would be produced in 1-year in kilowatt-hours?
How many cubic meters would the cargo hold of Santa’s sleigh have to be to carry a twelve-inch action figure for every girl and boy in the world?
How many students have graduated from Acton Boxborough Regional High School?
12
21
5
63
12
How many total kilometers do all Americans drive in one year?
How many new, unsharpened, standard-sized pencils laid end to end along the longest axis would it reach from the sun to the Galactic center of the Milky Way?
What is the total number of points scored by any NBA team in the 2017-2018 season? (points)
Archimedes famously placed an upper bound on the number of grains of sand needed to fill the entire universe: One vigintillion. How many grains of sand did he suggest?
How many pixels are uploaded to YouTube every day? Assume there is no compression and videos are 720p.
4
10
121
32
46 
A satellite is placed in geosynchronous orbit around Earth. What is its speed in feet per second?
What is the number of board game dice it would take to fill a Hindenburg class airship?
Compute 19^95.
What is the age of the earth in femtoseconds?
How much energy, in Joules, is released in a typical type II supernova from gravitational potential energy?
7
36
-3
10
4
What is the kinetic energy in joules of a large truck at highway speed?
If we covered the entire state of Kansas with a single layer of pennies, and then wanted to cover each penny with the maximum amount of water droplets without breaking surface tension, how many yoctoliters of water would we need?
How long is the smallest bee, Trigona minima, in meters?
Number of humans on planet Earth.
How many hot dogs are eaten at a Boston Red Sox game?
-8
5
-2
2
2
What is the estimated diameter of a carbon atom in centimeters?
How many hair follicles are on an average adult’s scalp?
What is the mass in metric tons of a stack of US quarters as tall as the Washington Monument?
After building a human hovercraft, Wendy checks out the Mousetrap Vehicle (a vehicle powered by mousetraps). She sits in one of those rolly chairs and attaches a string to the vehicle and to the chair. When she releases the mousetrap, to her disappointment, the chair is not pulled forward. How many mousetrap does Wendy need to pull her across a room at 10 mph?
How many hours would it take to count to 1 million?
7
7
3
0
5
How many seconds are there in a fortnight on Pluto?
What is the temperature at the center of the Sun?
How many miles of railroad track are in Ohio?
The difference between the force of the moon on a particle at the Earth’s surface and between the force of the moon on a particle at the Earth’s center generates a tidal force. What is the ratio of the magnitude of the lunar tide force to that of the solar tide force?
The duration of all lightning strikes in the U.S. on any given day  in picoseconds
4
-18
3
8
10
Every minute, how many red blood cells are produced in the average human body?
How long does it take a photon to travel the radius of a boron atom in a vacuum in seconds?
Given the same truck as described in the previous question, how many kilowatt-hours (kWh) would be generated if the volume of gasoline, required to transport this empty truck lengthwise across the state of Wyoming, were burned? (Previous question mentions a pick-up truck with a fuel efficiency of 200 millimiles per centigallon.) 
How many dogs are there in the United States?
How many meal worms would you need to stack on top of each other to reach the moon? 
11
1
-8
5
14
How many gallons of gasoline were consumed by the U.S in 2017?
How many Volts does a standard potato battery produce?
What is the circumference of the earth in petameters?
How much would you make working for a year straight at California minimum wage.
What was the mass, in mg, of the turkeys from Problem #29? (Problem #29: How many turkeys were consumed during November and December in 2012 in the United States?) 
12
5
9
5
11 
How old is the oldest organism currently alive measured in atoms (the unit of time)?
Between 2009 – 2013, how many LED lights were installed to save energy in the U.S.?
How many seconds is the average lifetime?
How many words are there in the Second Edition Oxford English Dictionary?
What is the half-life of Carbon-14? 
-9
-28
4
16
6 
Say you are standing in front of a sink and mirror ~ 1 meter away, how fast (in seconds) would you have to blink to see yourself completely blink in a bathroom mirror? (s)
What is the approximate density of the universe in kg/m^3?
On average, how many crayons does Crayola manufacture in a minute?
How many pennies are in $314,151,617,181,920.21?
How many hairs are on an adult black bear?
0
7
7
6
30
If all of the candy corn alone that was sold at Halloween was laid out end to end, how many times would it circle the earth?
What is the number of red blood cells in a drop of blood for an average human adult?
How many turkeys are consumed at Thanksgiving each year?
The mean volume of a single alveolus in a human lung. (μm^3)
Consider the combustion of butane (2C4H10 + 13O2 → 8CO2 + 10H2), which has an enthalpy of combustion of -2877.5 kJ/mol. How much energy, in Joules, would be released by reacting an Avogadro’s number of moles of butane with unlimited oxygen? 
2
14
13
7
6 
How many North Carolina’s can fit into Australia? (North Carolina)
How many cells are there in the human body?
If every human who has ever lived got together to push a giant rock over purely flat soil on Earth, what is the mass of the most massive rock, in kilograms, that they could push to overcome static friction with the ground (i.e. get it to move even just a teensy bit)?
How many inches thick is continental lithosphere?
What is the average number of people playing fortnite on any given day?
20
0
-7
8
13
How much water (in liters) is in the Atlantic Ocean and its adjacent seas?
The world’s largest ball of sisal twine in Cawker, KS has a mass of 20,324 pounds. If this twine was unrolled, how many times would it outline the perimeter of the state of Kansas?
What is the concentration in molarity of H+ in pure water?
How many teaspoonfuls of air would fit in the Oval Office?
How many grams of caffeine would be found in Lake Erie if it were filled with Coca-Cola?
21
9
-2
44
9
How many liters of water are there in Earth’s oceans?
What is the angular frequency of the fastest man-made spinning object in the world in rpm?
How long could the energy in a typical alkaline AA battery power a Bugatti Veyron for (in seconds)?
What is 30^30?
Highest 'Worldwide Box Office Gross' for a movie (US $)
26
8
5
9
-10
How much money, in USD, would you be spending on buying Minecraft in the previous question? (Previous question: How many Pixel 3s with the maximum storage capacity available for purchase would it take to download Minecraft Pocket Edition the same number of times as there are water molecules in a Dasani water bottle? (Assume that you can download multiple copies of a single game on each phone, and that 100% of the storage is going to storing Minecraft Mobile).)
How many teaspoons of air would fill the oval office?
How many grains of coarse sand can fill a Mason jar?
How many server requests are made for 20M Internet users each hour?
How many light years is it from Berwyn, PA to Chicago, Illinois? 
-2
3
-47
1
-29
How many giraffes are needed to fill a standard-sized shot glass?
What is the Earth’s equatorial circumference, measured in marathons?
What is the gravitational attractive force between the proton and electron in a hydrogen atom?
What mass of oxygen, in grams, will you consume through aerobic respiration during this Fermi Questions exam (presuming that you don’t die or hyperventilate so frantically as to skew the results)?
The mass of a AAA battery would have to be condensed to a sphere of what radius before it becomes a black hole? Give your answer in meters.
3
50
3
15
0
The average American puts on 1.5 pounds during the winter holiday season. By how many Mg does the mass of the population of Kansas increase?
How many photons are emitted from the sun per year (HINT: Assume that all of the photons have and energy of ≈ 10^(−19) J?
Since the time you were born, how far northward in millimeters has the continent of Australia drifted?
How many copies of this test will it take to fill the Pacific Ocean basin? Assume that this test is printed on standard letter-size paper.
How long in meters is the DNA in a single human cell?
10
-5
23
-10
1
How many bacterial cells in the body?
How many Lake Eries would it take to hold a pile of every credit and debit card in the world?
How many oxygen molecules enter your lungs on each inhalation?
How many km in 165 nm?
Number of states west of the Mississippi river?
19
17
-138
25
-3
How many grains of sand are there on Earth?
How old is the Earth, in seconds?
The airplane takes off! For some strange reason all twenty students are all taking different planes. What is the probability that all twenty planes are independently involved in a fatal crash?
What is 25! ?
What is the probability that I get a royal flush in a poker game?
-11
23
4
11
14
A sverdrup is a unit of volumetric flow (m^3/s) roughly equiva- lent to the total rate of water flowing from rivers into oceans. The Antarctic Circumpolar current flows from Eastward (in the same direction as the Earth’s rotation), carrying water a rate of 150 sverdrups. If the current were to spontaneously stop, by how long would the length of day be shortened?
20^18
Velocity of the Earth moving around the Sun. (meters per second)
A lightyear is equal to how many marathons?
What is the number of cells in a human body?
9
0
5
3
-26
What is the half-life of Uranium-238 in years?
As a factor, how much more is the price of an Engineering degree from an average university than the price of an average new car?
How many milligrams of sugar are in a 1 L bottle of Coca Cola?
How many songs can fit on a 5GB flash drive?
What is the mass of 1 atom of Nitrogen in kg?
32
7
-25
-9
9
How many electrons would you need to balance the weight of J.J. Thompson?
Annually, how many letters are lost in the mail in England?
What is the mass of an adult man divided by the mass of the Earth?
What is the average growth rate of a human fingernail in meters per second?
What is the weight in grams of the water in an Olympic sized swimming pool?