The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.

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Copyright and Fair Use

The contents of the Grey Labyrinth is the intellectual property of Wx3. This includes, but is not limited to, the text including puzzles, all graphical images, the source code, and the general "look and feel". Unauthorized duplication in any medium, electronic or otherwise, is prohibited without prior written authorization.

Some puzzles were originally authored by contributors.  These contributors retain the copyrights to their works, but grant the Grey Labyrinth unlimited rights to reproduce their contribution. 

Teachers, professors, and students may make print copies for use in class or papers, following MLA Style or APA Style referencing. Sample text quotes (50 words or less) may be used in reviews.

If you have a question about using any material, please feel free to ask the Minotaur.


The World Wide Web would be nothing without links. Any site may freely link to the Grey Labyrinth. However, in the past we have changed naming conventions and directory structures to keep up with improvements. So for this reason we ask that you link to home page: if possible, the only page guaranteed to exist as long the Grey Labyrinth lives. Any other page could conceivably be renamed or moved.

If you would like to link to link to the Grey Labyrinth, you may at your option use this icon for your link:

The Grey Labyrinth