How do I know you’re not the one projecting?
Because you’re the one talking about other people’s state of mind. That’s how I know your…
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What is the best height for a wheel spinning in jelly?
This is actually a really hard problem – it’s a really neat problem for students of…
What if I’m really the only mind in the universe, and all my “experiences” are really just my imagination creating everyting?
Then mistakes wouldn’t exist. What, you never make mistakes? Super: God himself dropped by my website.…
What happened during Ed’s Alien Abduction?
I never believed those crazy UFO nuts ‘till just a couple weeks ago. I never thought…
What color is the bear?
The Bear Hunter This is a mapping puzzle. Drawing a picture, or having a map might…
Find X; the diagonal of a rectangle inscribed in a quarter of a circle
I really like this puzzle because it does such a good job of illustrating the essential…