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| Scientific American Head Games: 48 Confounding Word & Math Puzzles Knowledge CardsProduct DescriptionEach card features a confounding question on one side, with the answer on the other side. Sample question from Scientific American Head Games: break one word into two parts with completely different meanings. As one word, it is a noun for “a type of cloth.” The correct solution for the two words includes a verb meaning “adheres” and another verb meaning “attempt.” | |||||