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

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

Difficult Logic Puzzles for Smart Kids: 150 Brainteasers and... - Conrad, James

150+ Challenging Numeric & Logic Puzzles

Detective Logic Puzzles for Adults: 50 Crime-Themed Logic Grid Puzzles - Fun, Easy to Hard Logic Puzzles - Large Brain Teaser Book