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You have two ropes that each burn in 1 hour but not at a uniform rate. How can you measure 45 minutes? How can you make
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Join in the pun! Hundreds of riddles, charades, puzzles, and word games -- accompanied by charming illustrations -- prom
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Discusses games with numbers, geometrical figures, logic, probability, and paradoxes, and looks at their mathematical ba
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★ Even kids who are not math nerds will enjoy this book. We hits the perfect mix of brainteasers. They’re challenging wh
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What is a better fit: a square peg in a round hole, or a round peg in a square hole?Your music player seems to be playin
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Kids love exploring new ways of solving problems, especially in fun and challenging puzzle formats. In Math and Logic Pu
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Keep your mind fit with brain aerobics! If you like great mental exercises, try brain aerobics. All you have to do is op
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