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What is the most common chemical element on earth?
Hydrogen
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Who discovered the law of gravity?
Isaac Newton
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Which country's longest river is calle the Po?
Italy's
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What does USB stand for?
Universal Serial Bus
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Can you solve this?
6
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In what part of the body is the "tibia"?
Leg
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How many books are there in The Lord of the Rings?
Three
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What year did the Second World War start?
1939
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