# Riddles of the Sphinx

## Martin Gardner

This book charms, informs, inspires, puzzles and delights, and the reader can dip in almost anywhere and get hooked by the natural lucidity of style and the friendly tone which are so characteristic of Martin Gardner. The book is well presented and beautifully printed. The book will enrich any bookshelf. — Gregory D. Economides in Mathematical Spectrum

The author did it again! He produced another delightful, charming book of puzzles! An impressive variety of topics includes mathematics (as deep as the Erdös-Szekeres theorem!), physics, astronomy, geology, linguistics, etc. — A. Soifer in Zentralblatt für Mathematik

The first (puzzle) provides an absolutely fascinating start to the book and leaves the reader drooling for more. It is impossible to detract from Gardner's brilliance or from the pleasure to be had from this collection. — Victor Bryant in New Scientist

Martin Gardner begins Riddles with questions about splitting up polygons into prescribed shapes and he ends this book with an offer of a prize of $100 for the first person to send him a 3 x 3 magic square consisting of consecutive primes. Only Gardner could fit so many diverse and tantalizing problems into one book. This material was drawn from Gardner's column in Issac Asimov's Science Fiction Magazine. His riddles presented here incorporate the responses of his initial readers, along with additions suggested by the editors of this series. In this book, Gardner draws us from questions to answers, always presenting us with new riddles — some as yet unanswered. Solving these riddles is not simply a matter of logic and calculation, though these play a role. Luck and inspiration are factors as well, so beginners and experts alike may profitably exercise their wits on Gardner's problems, whose subjects range from geometry to word play to questions relating to physics and geology. We guarantee that you will solve some of these riddles, be stumped by others and be amused by almost all of the stories and setting that Gardner has devised to raise these as yet unanswered. Print on demand (POD) books are not returnable because they are printed at your request. Damaged books will, of course, be replaced (customer support information will be on your receipt). Electronic ISBN: 9780883859476 Print ISBN: 9780883856321  PDF Price POD Price Riddles of the Sphinx$15.00 \$36.00

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