Answer:
I have a head tail but no arms and legs.
I am carried by mad animals.
I don't live within a house, nor do I live without. Most will use me when they come in, and again when they go out. What am I?
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty. What am I?
In all the world, none can compare, I am a tiny weaver; my deadly cloth so silky and fair. What am I?
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?