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