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Science
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100

What is Thomas Edison's most famous invention?

Lightbulb

100

Which athlete has won the most Olympic medals?

Michael Phelps (with 28 medals)

100

What is the largest bone in the human body?

Femur

100

What was the first soft drink to be taken into space?

Coca Cola

200

What was eBay originally called?

AuctionWeb

200

What was Muhammed Ali's birth name?

Cassius Clay

200

What's the human body's largest organ?

Skin

200

What is the rarest M&M color?

Brown

300

What year was the first iPhone released?

2007

300

Which team scored the most points ever in a single Super Bowl?

The San Francisco 49ers (55 points in 1990)

300

What is the lightest planet?

Saturn (It's so light that it  would float in water)

300

What color do bananas glow under black light?

Blue

400

What does HTTP stand for?

Hypertext Transfer Protocol

400

After how many personal fouls is a player ejected from an NBA game?

400

400

How many elements are in the periodic table?

118

400

What is the technical name of the "#" symbol?

Octothorpe

500

What year did Facebook launch?

2004

500

Which African country was the first to ever qualify for a World Cup?

Egypt

500

The first vaccine developed was for which disease?

Smallpox

500

What is the only letter of the alphabet not to appear in the name of any US state?

Q