Answer:
You throw me out when you use me and take me in when you are done.
What has a ring but no finger?
I have a hundred legs, but cannot stand. I have a long neck, but no head. I cannot see, and I'm neat and tidy, as can be. What am I?
I keep growing and am practically indestructible. I get eaten, but always come back. I survive cold and lie everywhere. You see me everyday. What am I?
I am the building with the most number of stories. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.