How much caffeine is in a typical cup of coffee?
What is the population of the United States?
What's the average thickness of the Earth's crust?
What's the average wattage of a household microwave?
What's the average speed of the Mississippi River?
What's the average growth rate of human hair?
How much electricity does the average solar panel generate?
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 total length of the human circulatory system?
What's the speed of the fastest recorded baseball pitch?
How long is the Great Wall of China?
How much does the average bicycle weigh?
What's the density of copper (in g/cm³)?
What's the average upload speed of 4G LTE?
What's the diameter of a basketball?
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 market cap of Intel?
How many bricks are in the Great Wall of China?
How many gallons of paint are needed to paint the White House?
What's the average size of a car parking space?
What's the average speed of a rabbit?
How much water does the average person drink per day?
What is the market capitalization of Apple Inc.?