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6 Impossible Puzzles With Surprising Solutions
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Popular Science's "Unsolved" Car Puzzle
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Can You Solve Apple's Split The Coins Riddle?
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I never understood why you can't go faster than light - until now!
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The Math Behind Speeding: More is Less
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The Man Who Solved the $1 Million Math Problem...Then Disappeared
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Is 1/4 of the circle shaded? Most students get this wrong
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