Since you people are so quiet, I thought I should stir the pot a little.

Here's a challenge:

1) Name a uniform polyhedron with 8 faces, 18 edges, and 12 vertices.

2) Can you name a different polyhedron with 8 faces, 18 edges, and 12 vertices? Interesting coincidence, isn't it?

If you found the above too trivial, how about:

3) How many 4D uniform polychora can you name that contains the above two polyhedra as cells?