Here are some fascinating and beautiful computer graphics.

[Update a few minutes later]

A commenter says they’re not computer generated, that they’re paintings. Either way, very interesting.

I screwed up number two, because I didn’t read carefully, and thought it was asking about the minute hand (which was simple–a hundred twenty degrees). And I couldn’t manage number five in my head. I was trying to do the algebra, and couldn’t manage it. And a couple of them, as noted, are trick questions.

And I certainly wouldn’t have done that well at age eight.