Mathematical Puzzles And Other Brain Twisters

This book was compiled for those who find enjoyment, entertainment and relief from worry in solving mechanical and manipulative puzzles and for the recreational leader who uses puzzles as a leisure time activity. A few can be purchased — but by including such information the title of the book would be misleading; and furthermore it’s more fun to make than buy them.

The puzzles in this book are arranged in units of ten and in order of difficulty so that they may be used as a progressive form ...