Answer:
I am the kind of nut that is empty at the center and has no shell.
lighter than feather and softer than silk yet the strongest man in the world cannot hold me for more than a few minutes.
I begin and have no end and I end all that begins. What am I?
If you break me, I'll not stop working. If you can touch me, my work is done. What am I?
I have hands but cannot clap
I am a band that does not perform, sing, or act. What am I?