Answer:
When I am caught, I am thrown away. When I escape, you itch all day. What am I?
I have a head tail but no arms and legs.
I am the only word that looks the same when spelled upside down.
I'll bring out your bulls and slow your roll. I may even come out of your skull.
You will always find me in the past. I can be created in the present, but the future can never taint me. What am I?
It comes from crystal and melts to a treat. Add it to your tea to make it sweet. What is it?