Just like the rest of our body, the brain needs exercise, and this fun book contains more than 250 puzzles to keep your mind in high gear. Designed to sharpen concentration, increase spatial perception, and fine tune your memory functions, here are various levels of classic and new crosswords, trivia quizzes, word searches, brainteasers, word pyramids, Sudoku, Kakuro, and more. The spiral binding enables the book to lay flat, and the solutions are included in the back of the book.