Book excerpt: Terry Stickels is a master puzzlemaker known for the fascinating variety and many forms of his original puzzles. As in his previous book, Are You as Smart as You Think?, he challenges readers with a mix of narrative puzzles to be solved with logical thinking, number puzzles that demand common sense but not higher math, and his very popular "frame games"-puzzles that mix pictures, letters, and numbers to provide fun for puzzlers of every age.