Haselbauer N. (ed.) The Mammoth Book of Quick Puzzles: Over 400 Quick-Fire Puzzles to Entertain Your Brain

Running Press, 2009. — 484 p.Over 400 puzzles to keep you amused — they’re fast and not too tough!
A clever new collection offers a fun and satisfying hit that won’t tie you up in knots. This giant volume contains hundreds of original puzzles designed to be completed quickly, ranging from easy math and logic problems to word games, Sudoku, mazes, and illusions. All are straightforward and to the point, offering enjoyment and mental stimulation, not headaches!
The perfect collection for waiting in Line, a long trip, or for just passing the time.
So you think you're a genius? This brilliant new collection of tantalizing puzzles and top-grade problems by the founder of the International High IQ Society will “puzzle” your mind with extreme mental exercise. Over 400 original puzzles from graphic conundrums to logic puzzles and word teasers cover a broad range of difficulty.