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About how old is our Universe?

5.5 billion years
10.5 billion years
13.5 billion years

About what percent if species that have ever lived on Earth are extinct now?

10%
50%
99%

When did Homo sapiens appear on Earth?

200,000 years ago
6 million years ago
65 million years ago

Our Sun is how far from Earth?

150 million km
250 million km
500 million km

What is the most common element in our Universe

Carbon
Nitrogen
Hydrogen

The Brad Pitt movie "Troy" was based on what ancient book?

The Bible
Homer's The Iliad
Euclid's Elements

This great scientist/astronomer boldly asserted that the Sun, not the Earth, is the center of our system of local planets.

Ptolmy
Copernicus
Newton

Who discovered DNA?

James Watson & Francis Crick
Linus Pauling
Friedrich Miescher

What is the probability that a fair coin toss will land "heads" ten straight times?

1 in 72
1 in 625
1 in 1024

According to Berkshire Hathaway's 2007 Annual Report (Feb2008), its Warren Buffet managed portfolio of businesses increased in book value by what percentage per year from 1965 to 2007?

21.1%
24.6%
28.4%