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