Answer:
I am so delicate that even mentioning me breaks me. What am I?
What goes up and down stairs without moving?
The more you take away from it the larger it becomes. What is it?
I have a little pool with two layers of wall around it. One white and soft and the other dark and hard. What am I?
I run up and down the stairs without moving. What am I?
When is it bad luck to see a black cat?