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