Answer:
Don't do this in the shallow end.
What I am filled, I can point the way. When I am empty. Nothing moves me. I have two skins. One without and one within.
I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes.
I walked and walked and at last I got it. I didn't want it. So I stopped and looked for it. When I found it, I threw it away.
What types of words are these: madam, civic, eye, level?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?