Mensa® Mind Benders: 100 Logic Games and Puzzles to Improve Your Memory, Exercise Your Brain, and Keep Your Mind Sharp (Mensa's Brilliant Brain Workouts)

Mensa® Brain Games: 100 Puzzles and Riddles to Stretch Your Skill, Improve Logic, and Challenge Your Brain (Mensa's Brilliant Brain Workouts)

Ultimate Mind Games: With Over 400 Puzzles

The 125 Best Brain Teasers of All Time: A Mind-Blowing Challenge of Math, Logic, and Wordplay

Challenging Logic Puzzles (Official Mensa Puzzle Book)

Tricky Logic Puzzles for Adults: 130+ Difficult Puzzles to Challenge Your Brain

Mensa® AARP® Challenging Brain Twisters: 100 Logic and Number Puzzles (Mensa® Brilliant Brain Workouts)

My Best Mathematical and Logic Puzzles (Dover Recreational Math)

Brain Games - Puzzles: Left Brain Right Brain

399 Games, Puzzles & Trivia Challenges Specially Designed to Keep Your Brain Young.