53 brain teaser to improve your brain - include answer key
Some say computers will one day prove to be the ultimate thinkers. But as of yet the only system that can tackle an almost infinite range of problems is the amazing human brain. Here's a chance to put yours to the test. These mazes, crosswords, visual challenges, word puzzles, and brain-twisting teasers provide a feast of fun and a great way to keep your thinker in tiptop form.
Try the easier puzzles (one star) first, and then progress to the harder games (two and three stars). You’ll find the answers
starting on page 48. But resist the temptation to peek in advance. Instead, look for the solutions in the back of your brain—with a bit of patience, you'll find them there!
Now put on your thinking cap and get ready to tickle that gray matter.