Answer:
I move without wings, between silken strings. I leave as you find my substance behind. What am I?
my rings are not worth much but they do tell my age.
I am owned by Old McDonald.
I bring light to a dark world. In a current I travel and through tunnels I am hurled. Touch me and I'll kill you. What am I?
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
Strip the skin under my skin, and my flesh you'll reveal. It tastes sweet and tart, now throw out the peel. What is it?