There are different ways to popularize science. ME AND. Perelman became one of the founders of popular science literature, vividly and figuratively explaining seemingly dry facts. During his life, he wrote dozens of books that are still interesting to young and adult readers. He always tried to surprise and captivate, and what could do this task better than games and puzzles? Fun tasks involve attentiveness, logical thinking, intelligence and creativity. Some of them are not so complicated, but very often everything is not as obvious as it seems at first glance. The book will teach you impressive tricks that can surprise and amuse a group, and show you how to perform interesting scientific experiments. Not only fascinating, but also educational, the collection will be of interest to both schoolchildren and older generations.