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My Answered Questions
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has anyone landed on the moon since 1972
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do our brain get rusty
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are our eyeballs round
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how long can a human last with no food or water
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why do chickens lay eggs
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in the stone age how long did an average human live
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why does water sometimes have bubbles in them
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what si the most popular element
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how old is the world
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do mermaid exit