Answer:
I have a head tail but no arms and legs.
What gets sharper the more you use it?
you hold my tail while I fish for you
Iām tall when Iām young. Iām short when Iām old. I can light up your world. What am I?
I am a word. I become longer when the third letter is removed.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.