Contains 90 excellent puzzles, each lasting ten minutes, to help train your brain. The variety of puzzles and exercises will keep you alert and provide real brain training. Includes memory tests with words, shapes, and numbers, simple calculations, word squares and jumbled sentences, verbal thinking exercises as well as Sudoku and Kakuro problems. The puzzles will test language, memory, attention, and logic. By completing just one puzzle a day, you can become an excellent puzzle master.

Pages: 192, Dimensions: 12.9x12.9cm