Get ready to take on the book with these brain-stretching, mind-aching and totally random challenges! Set the timer and GO! This book contains 37 challenges. Each time you succeed, you beat the book! some challenges give you just one chance, while others allow a few attempts. When you succeed, record your triumph in the box next to the challenge. On some pages you will see an hourglass symbol - this represents a timed challenge. For timed challenges, use your flip-timer pen. For longer challenges, you will need to flip the timer more than once. Can you beat the book?