Brain teaser

Puzzle requiring thought to solve Part of a series onPuzzles Types Guessing Riddle Situation Logic Dissection Induction Logic grid Self-reference Mechanical Combination Disentanglement Lock Go problems Folding Stick Tiling Tour Sliding Chess Maze (Logic maze) Word and Number Crossword Sudoku Puzzle video games Metapuzzles Topics Brain teaser Dilemma Joke Optical illusion Packing problems Paradox Problem solving Puzzlehunt Syllogism Tale Lists Impossible puzzles Maze video games Nikoli puzzle types Puzzle video games Puzzle topics vte A brain teaser is a form of puzzle that requires thought to solve. It often requires thinking in unconventional ways with given constraints in mind; sometimes it also involves lateral thinking. Logic puzzles and riddles are specific types of brain teasers. One of the earliest known brain teaser enthusiasts was the Greek mathematician Archimedes. He devised mathematical problems for his contemporaries to solve. Example A brain teaser may be a mathematical puzzle: Q: If three men can dig three holes in three hours, how many holes can one man dig in one hour? A: One third of a hole. (In one hour three men have dug one hole; with a third of that work being