Mensa Sudoku: Put your logical reasoning to the test with more than 200 tricky puzzles solve

Lateral Thinking Puzzles: More than 90 brainteasers to solve with logical reasoning

Mensa Killer Sudoku: More than 200 of the most difficult number puzzles

Mensa Crosswords: Test your word power with more than 100 puzzles

Mensa Logic Puzzles: More than 150 brainteasers to test your powers of deduction