Math Puzzles Volume 1: Classic Riddles and Brain Teasers In Counting, Geometry, Probability, And Game Theory 1Presh TalwalkarPDF1.7 MBEN
Math Puzzles. Volume 2 : More Riddles and Brain Teasers in Counting, Geometry, Probability, and Game TheoryPresh TalwalkarPDF1.9 MBEN
Math Puzzles Volume 3: Even More Riddles And Brain Teasers In Geometry, Logic, Number Theory, And ProbabilityPresh TalwalkarEPUB1.3 MBEN