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Increase Your Puzzle IQ: Tips and Tricks for Building Your Logic Power
Original price $16.95 - Original price $31.95Original price $16.95 - Original price $31.95Original price $16.95$14.95 - $29.95$14.95 - $29.95Current price $14.95Learn how to take the "tease" out of brainteasers, and increase your puzzle IQ with this eye-opening guide to solving puzzles. Revealing the basic ...
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The Liar Paradox and the Towers of Hanoi: The 10 Greatest Math Puzzles of All Time
Original price $15.95 - Original price $29.95Original price $15.95 - Original price $29.95Original price $15.95$13.95 - $27.95$13.95 - $27.95Current price $13.95A walk through history's most mind-boggling puzzles Ever since the Sphinx asked his legendary riddle of Oedipus, riddles, conundrums, and puzzles o...
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