Logic puzzles

A type of word puzzle that need logic, or sometimes math, to solve them. This category excludes traditional riddles, which usually rely on word tricks, puns or other semantic misunderstandings.

Here's a quick list:

• The brakeman, the fireman, and the engineer
• Truths and lies
• Monks with blue spots puzzle / Riddle of the blue eyes
• The unexpected hanging
• Knights and Knaves

The Old Chestnut node has a lot of logic puzzles; hard interview questions has a lot of very hard logic puzzles.

Most puzzles which are not word puzzles dependent on the meanings of words, like crosswords, can be thought of as logic puzzles in some sense. Sometimes the pure math puzzles are separated from these as another separate class of puzzle.

The World Puzzle Championship consists mainly of logic puzzles and some math puzzles.

Old Chestnuts are often logic puzzles; you can find many examples at that node.

One popular category of logic puzzles are what I call grid-logic puzzles; these include Paint by numbers, battleships, most path puzzles, and other similar puzzles.