You keep your body in shape by working out--now do the same for your brain These super puzzles will build your mental muscles by targeting every area of your grey matter. The sooner you start, the smarter you'll get. Test your logic insight, ability to concentrate, visual recognition, and your memory and knowledge. Guaranteed to challenge your brain and improve your mind. If you can't solve the puzzles, don't look up the answers--just try again later. Finding the solution after your vigorous brain workout is more fun than knowing the solution.