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

Approximately 8.96 g/cm³.

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

About 27.3 days (synchronous with its orbit).

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

5 to 70 km (3 to 44 miles), varying between oceanic and continental.

How long is the Great Wall of China?

Approximately 21,196 km (13,171 miles).

What's the average wattage of a household microwave?

600 to 1,200 watts.

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

105.1 mph (169.1 km/h).

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

2 to 50 Mbps (Megabits per second).

What is the market capitalization of Apple Inc.?

Approximately $2 trillion.

What's the diameter of a basketball?

About 24.6 cm (9.7 inches).

How much water does the average person drink per day?

About 2.4 liters (0.63 gallons).

What is the population of the United States?

Around 331 million (as of the last known data).

How much electricity does the average solar panel generate?

Around 250 to 400 watts per panel.

What's the average growth rate of human hair?

About 0.5 inches (1.25 cm) per month.

How much caffeine is in a typical cup of coffee?

About 95 mg per 8 oz cup.

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

About 570 gallons.

What's the market cap of Intel?

Approximately $200 billion to $300 billion, fluctuating over time.

What's the average speed of a rabbit?

Up to 35 mph (56 km/h) in short bursts.

At what speed does light travel in a vacuum?

Approximately 299,792 kilometers per second (186,282 miles per second).

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

9 to 10 feet wide by 18 to 20 feet long (2.7 to 3 meters by 5.5 to 6 meters).

What is the total length of the human circulatory system?

About 100,000 kilometers (62,137 miles).

How much does the average bicycle weigh?

20 to 30 pounds (9 to 13.5 kg).

How many bricks are in the Great Wall of China?

Estimated to be over 3 billion.

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

About 5,500°C (9,932°F).

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

$30,000 to $150,000, varying widely by type and scale.

What's the average speed of the Mississippi River?

About 1.2 miles per hour (1.9 km/h).