Mathematical Quickies: 270 Stimulating Problems with Solutions - Charles W. Trigg - Google Books

http://books.google.de/books?id=9W6GQ42BRR0C

For the mathematics enthusiast of any age or level of sophisitcation, this stimulating treasury of unusual math problems offers unlimited opportunity for mind-biggling recreation. Carles W. Trigg, Dean Emeritus and Professor Emeritus at Los Angeles City…