Answer:
My geometry is lost in the night to be found in daylight's break. The rigors of time have torn me to shreds, yet I stand to protect that which lies within. What am I?
What has many keys but can't open a single lock?
I go in dry and come out wet. The longer I stay in the stronger my surroundings get.
What's made of water but if you put it into water it will die?
The more you add the less it weighs. What is it?
What made Cyclops quit teaching?