What makes a good life? Whether you're human or feline, we think life should be safe and cozy. But it should also be fun and moderately active, lest we all turn into blobs like in Wall-E. Just like us ...

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 ...