A collection of puzzles that will challenge the best puzzle solver.

The latest in the hugely popular series of think-out-of-the box brainteasers, including Classic Lateral Thinking Challenges and Colorful Lateral Thinking Puzzle

Our lateral thinking experts, Sloane and MacHale, have re-donned their proverbial thinking caps to bring solvers another selection of thought-provoking puzzles.

Are you good at thinking outside the box? Do you consider yourself logical? And, most important of all, do you love a good challenge? Then this Mensa collection

The clues to solving each puzzle can be found within it, but you need to break free from conventional thinking and toss aside core assumptions. Ninety entertain