Puzzles, tasks, and riddles

Intellectual leisure is an exciting and at the same time extremely useful form of spending free time. This edition contains puzzles and tasks compiled by a famous mathematician, physicist, teacher Jacob Perelman. His tasks are small miniatures that develop mind, quick wits, intelligence, logic, attentiveness, common sense and creative abilities. They also accustom to non -standard, non -stepy thinking and train memory. The author came up with his tasks with humor and great knowledge of human psychology.
The book is ideal for classes and games in friendly companies. She will help children better learn the material passed at school, and gives adults to refresh and test their knowledge in mathematics and physics