The Lady or the Tiger? By (author): "Raymond M. Smullyan"Genres:Nonfiction books Mathematics books Puzzles books Logic books ISBN0394514661ISBN139780394514666AsinThe Lady or the Tiger?Original titleThe Lady or the Tiger? And Other Logic PuzzlesA challenging, mind-jogging puzzle compendium. These puzzles are peopled with a cast that includes vampires, psychiatrists, and dreamers. For all ages and all levels of difficulty.