Some people start their day with gymnastics to loosen up their bodies and maintain flexibility. Unfortunately, few take the time to train their brains, the organ that makes us human. This book provides you with brain teasers and helps you with year-round brain jogging. It is aimed at students aged 14 and up who want to sharpen their minds through suitable training, adults who find crossword puzzles insufficient, and older individuals who wish to stay mentally fit. All of them will notice that their thinking ability becomes clearer and more flexible as they solve the tasks. Read a few puzzles each week, think about them, and try to find the solutions. This sharpens your thinking skills, and you will enjoy every step of the way. If you are unable to solve a task within one to two days, refer to the hints.