Teasers Ticklers and Test Author:Ray Cagle This book contains mind excercisers, mind bogglers and mind teasers told with humor and short stories. It teaches you how to think and use your reasoning. There is something in it for everyone, with the easier ones for pre-teens, the middle ones for teens, the harder ones for math students, electronic students, and the hardest ones for teachers ... more »of math, electronics, etc.« less