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.
The Moscow Puzzles: 359 Mathematical Recreations by Boris A. Kordemsky Most popular Russian puzzle book ever published. Brain teasers range from simple "catch" riddles to difficult problems. Lavishly illustrated. First English translation. Introduction. Solutions.
The Stanford Mathematics Problem Book: With Hints and Solutions by G. Polya, J. Kilpatrick Based on Stanford University's well-known competitive exam, this excellent mathematics workbook offers students at both high school and college levels a complete set of problems, hints, and solutions. 1974 edition.
