What's the average thickness of the Earth's crust?
What's the diameter of a basketball?
What is the population of the United States?
What is the total length of the human circulatory system?
How many bricks are in the Great Wall of China?
What's the average upload speed of 4G LTE?
What's the average growth rate of human hair?
How long does it take for the Moon to rotate once on its axis?
What is the market capitalization of Apple Inc.?
How much does the average bicycle weigh?
What's the average speed of a rabbit?
What's the density of copper (in g/cm³)?
How many gallons of paint are needed to paint the White House?
What's the average size of a car parking space?
How much water does the average person drink per day?
What's the average speed of the Mississippi River?
At what speed does light travel in a vacuum?
How much caffeine is in a typical cup of coffee?
What's the market cap of Intel?
What's the average temperature of the surface of the Sun?
What's the average annual budget for a small business in the U.S.?
What's the speed of the fastest recorded baseball pitch?
What's the average wattage of a household microwave?
How much electricity does the average solar panel generate?
How long is the Great Wall of China?