25 Perplexing Puzzlers

This book features 25 different puzzles that will test your geometric and mechanical problem solving skills. Each puzzle features one or more interactive diagrams that allows you to explore the problem. The diagrams will not directly give you the answer to the problem, but will help you explore and understand the challenge. 


Several problems date back to the Ancient Greeks, while others are brand new. 


Solutions to all the problems are given, and the solutions themselves come with interactive diagrams. They refer you both to by-hand and technologically assisted forms of problem solving, with a bias towards the technological approaches.