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What's the diameter of a basketball?

What's the average speed of the Mississippi River?

What's the average size of a car parking space?

What's the average temperature of the surface of the Sun?

How many bricks are in the Great Wall of China?

How long does it take for the Moon to rotate once on its axis?

What's the density of copper (in g/cm³)?

What is the total length of the human circulatory system?

At what speed does light travel in a vacuum?

What's the average upload speed of 4G LTE?

What's the average thickness of the Earth's crust?

How much water does the average person drink per day?

What's the average wattage of a household microwave?

What is the population of the United States?

What's the market cap of Intel?

What's the speed of the fastest recorded baseball pitch?

What is the market capitalization of Apple Inc.?

What's the average growth rate of human hair?

How much does the average bicycle weigh?

What's the average speed of a rabbit?

How much electricity does the average solar panel generate?

How much caffeine is in a typical cup of coffee?

How long is the Great Wall of China?

What's the average annual budget for a small business in the U.S.?

How many gallons of paint are needed to paint the White House?