Answer:
I'm at the head of an elephant and at the tail of a squirrel
You use a knife to slice my head and weep beside me when I am dead.
I am bought by the yard but worn by the foot
I am useless when together but useful when I am broken apart. What am I?
I have three heads. Cut off one I become stronger. Cut off two I become ten.
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?