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