Answer:
Tear me off and scratch my head what once red is now black.
Flat as a leaf, round as a ring; have two eyes, can't see a thing. What am I?
I am full of holes but still holds water.
Use me if you really want to see inside someone
I am used for light yet I am solid. Without me you would feel enclosed. I hate being touched especially with a lot of force. I like to be in buildings.
When is it bad luck to see a black cat?