Logic Puzzles for Adults: 50 fantastic logic puzzles plus 50 bonus assorted logical brainteasers

Logic Puzzles for Adults: 50 fantastic logic puzzles plus 50 bonus assorted logical brainteasers

50 Logic Puzzles: Full of Fun Logic Grid Puzzles! (Brain Teaser Puzzle Books)

50 Logic Grid Puzzles | Hours of challenging fun | Logic Puzzle Book for Adults: Fun and Challenging Logic Grid Puzzle Book