What Is the Name of This Book?: The Riddle of Dracula and Other Logical Puzzles

What Is the Name of This Book?: The Riddle of Dracula and Other Logical Puzzles by Raymond M. Smullyan

This book has a number of logic "riddles". Some are just simple jokes, but most deal with logic. The middle section of the books gets very tedious. There are hundreds of true/false logic puzzles, most variations on "A always tells the truth, B always lies. If someone says something, then way is the answer." The end section gets more interesting as he explores "false proofs" with logic puzzles that seem proper, but end up being ridiculous. There are also paradoxes of different types - the seem to be logically sound, but aren't (or vice versa). This would make a good "problem set" book. It presents a number of logic problems in a more entertaining format.