[Kagen Sound] is a woodworker and artist who gives a great behind-the-scenes look at his amazingly high-quality puzzle boxes (video). Not only do his varied puzzle box designs show his math background ...

Riddles are fun, and what are puzzle boxes if not riddles in physical form? This particular box—the "Impossible Dovetail Box"—makes its confusing first impression with a series of dovetail joints that ...

In my view, some of the most mind-boggling logic puzzles are those that present statements, some of which are true and some false, with the objective being to figure out where the truth of the matter ...