READER'S DIGEST GIANT PUZZLE BOOK

Some say computers will one day prove the ultimate in thinking technology. But as yet the only system that can tackle an almost infinite range of complex problems is the amazing human brain.

Here's a chance to put yours to the test. Many of the puzzles in this book would baffle even the most high-tech computer. But they needn't be out of your reach.

Apply yourself to the range on offer here and not only willyour puzzling skills improve but you'll also find you're quicker off the mark in everyday life. The more you exercise your grey matter, the better it will perform.