A mathematician is a blind man in a dark room looking for a black cat which isn't there.

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Son: Dad, it's so cold in here! Father: Go stand in the corner. Son: Why? Father: The corner is 90 degrees.

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Why is it hard for a blonde to count to 70? Because 69 is such a mouthful.

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What do you get when you put root beer in a square glass? Beer.

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How does a cow do math? With a cowculator.

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