What Is the Name of This Book?: The Riddle of Dracula and Other Logical Puzzles - Raymond M. Smullyan
The most original, most profound, and most humorous collection of recreational logic and math problems ever written. -- Martin Gardner, Scientific American The value of the book lies in the wealth of ingenious puzzles. They afford amusement, vigorous exercise, and instruction. -- Willard Van Orman Q






























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