Answer:
I am carried by mad animals.
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 goes through a door but never goes in and never comes out?
Who keeps the ocean clean?
I am what no man ever yet did see, which never was, but always is to be. What am I?
Give it food and it will live, give it water and it will die.