Answer:
They come at night without being called and are lost in the day without being stolen. What are they?
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?
At night I come without being fetched, and by day I am lost without being stolen. What am I?
I go into the water black and come out red. What am I?
I am a piece of paper that takes most people 3 or 4 years to get. What am I?
When is it bad luck to see a black cat?