You just need the simplest everyday items to try these teasers and challenges—but they all stre-e-e-etch your powers of imagination and deduction! See how to... ● make objects appear and disappear ● step through a piece of paper ● create matchstick challenges ● do card tricks ...and lots more. Devised by an expert on brain training, these visual conundrums and fun games will inspire you to find smart solutions to ticklish problems! There are handy tips if you need help, plus an answer key at the back!