What is the name of this book?: The riddle of Dracula and other logical puzzles by Raymond M Smullyan
English | 1978 | ISBN: 0139550887 | 241 Pages | PDF | 7 MB
English | 1978 | ISBN: 0139550887 | 241 Pages | PDF | 7 MB
"The most original, most profound, and most humorous collection of recreational logic and math problems ever written." — Martin Gardner, Scientific American