A Hen and a Half : Intriguing Conundrums, Confusing Paradoxes, Baffling Conjectures and Challenging Puzzles
$16.14
Tarquin Publications
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The Sunday Times Teasers Book 2 : Challenge Yourself with 100 Lateral-Thinking Puzzles
$20.28HarperCollins Publishers
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The Joy of Abstraction : An Exploration of Math, Category Theory, and Life
$29.85Cambridge University Press
