Download or read book Mary's Logic Puzzles written by M Callaghan and published by AuthorHouse. This book was released on 2016-05-03 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: My book is about using your mind and instincts to solve these wonderful puzzles I have created. They are dedicated to people who love to keep their minds active. You know the old saying if you dont use it you lose it.