Mathematical Brain Benders (Dover Math Games & Puzzles) by Stephen Barr
Tax included.
ISBN: 9780486242606
Dover, 1 May 1982
Paperback, 240 pages
Challenge yourself with over 100 fresh paradoxes, puzzles, riddles, conundrums, word and number games for the jaded, skeptical puzzlist. Over 100 pages of comprehensive answers. Approximately 300 illustrations. "Excellent collection of unusual, offbeat, and completely original puzzles." — Scientific American.