Answer:
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty. What am I?
There was a green house. Inside the green house there was a white house. Inside the white house there was a red house. Inside the red house there were lots of babies. What is it?
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I'm not really more than holes tied to more holes; I'm strong as good steel, though not as stiff as a pole.
Although it sounds like I work on a transportation device I actually work in a restaurant.
What made Cyclops quit teaching?