Answer:
What has a bottom at the top?
You heard me before and then again. Afterward I die until you call me again.
I am the same written forward backward and upside down.
A thousand wheels, but move I do not. Call me what I am, call me a lot. What am I?
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?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?