Answer:
I can bring tears to your eyes; resurrect the dead, make you smile, and reverse time. I form in an instant, but I last a life time. What am I?
I have a hundred legs but cannot stand. I have a long neck but no head. I cannot see and I help keep your house neat and tidy.
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair.
I belong to you but others use me more often than you do. What am I?
I can speak with my hard metal tongue. But I cannot breathe, for I have no lung. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.