The Moscow Puzzles: 359 Mathematical Recreations (Dover Recreational Math)
This book has been a classic in the former Soviet Union since it was first published in 1956, and it remains just as entertaining today. A master at making math fun for his high school students, Boris Kordemsky loaded this clever collection with a wide variety of math and logic related games and puzzles dealing with magic squares, tricky weights and measures, properties of numbers, mathematical tricks, and more.  Number and math game fans are bound to find several new amusements here. Even many of the well-known classics from generations past take on new life with the fresh twists Kordemsky provides.