Over 60 mindbending challenges to delight and amaze you. Flex your mental muscles with Mindbenders, the interactive book of brainteasers, optical illusions, puzzles, tricks and more! As well as plenty of logic, word, and maths conundrums, you can be bamboozled by physical activities: discover how to pick up a marble without touching it; find yourself without any control over your own arms or legs; and defy gravity with balancing tricks. Plus there are absorbing interactive elements - fool your sense of perspective with optical illusions, track down the hidden shapes in a pop-up, and take on a colour-matching challenge that will really get you in a spin! With instructions and explanations, you'll understand how over 60 challenges work and be able to amaze friends and family with your knowledge. With clearly-presented challenges and entertaining images, Mindbenders will have you poring over these puzzles for hours on end.