Challenging Logic Puzzles (Official MENSA Puzzle Book) by Barry R. Clarke

Challenging Logic Puzzles (Official MENSA Puzzle Book)

Challenging Logic Puzzles (Official Mensa Puzzle Book), USED-Very Good, Clarke,

Brain-Busting Lateral Thinking Puzzles (Official Mensa Puzzle Book) - VERY GOOD

Award-Winning Chess Problems (Official Mensa Puzzle Book) - Paperback - GOOD

Challenging Logic Puzzles (Official Mensa Puzzle Book)

Challenging Logic Puzzles (Official Mensa Puzzle Book), Clarke, Barry R., Used;

The Mensa Number Puzzle Book: The World's Toughest Puzzles - Unused, Minor Wear