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