Answer:
In many hall ways you would stand if not with me in hand.
In all the world, none can compare, I am a tiny weaver; my deadly cloth so silky and fair. What am I?
If you drop me I'm sure to crack. But give me a smile and I'll always smile back.
By Moon or by Sun, I shall be found. Yet, if there's no light around, I am undone. What am I?
A spirited jig I dance bright, banishing all but darkest night. Air can't kill me but water can. Share me, I won't get less unless wind ruins me. What am I?
My days are numbered.