USA TODAY Jumbo Puzzle Book 2: 400 Brain Games for Every Day (USA Today Puzzles)
399 Games, Puzzles & Trivia Challenges Specially Designed to Keep Your Brain Young.
The Brainiest Insaniest Ultimate Puzzle Book!
The Total Brain Workout: 450 Puzzles to Sharpen Your Mind, Improve Your Memory & Keep Your Brain Fit
Challenging Logic Puzzles (Mensa®)
Entertain Your Brain: More than 850 Puzzles!