Answer:
You use a knife to slice my head. And weep beside me when I am dead.
I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes.
What an fill a room but takes up no space?
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.
Hard to catch, easy to hold. Can't be seen, unless it's cold
According to the music industry, you can count on a midnight train and the devil to turn up here.