0 Primeval Puzzle Prelude 1 Medieval Maths, Mysteries and Merriment 2 Parisian Perplexities, Problems and Posers 3 The Great Victorian Puzzlers 4 Puzzles Worthy of the Name 5 More Word Puzzles 6 The Logic of Hats 7 The Most Baffling Logic of All 8 Weights, Measures, Speed 9 Psychological Puzzles 10 Miscellaneous and Mysterious The Prize Puzzle