Answer:
I come out of the earth, I am sold in the market. The one who buys me cuts my tail, takes off my suit of silk, and weeps beside me when I am dead. What am I?
I am useless when together but useful when I am broken apart. What am I?
What comes once in a year twice in a week but never in a day?
I am an English word that is as long as I am valued. What am I?
Everyone has me, but nobody can lose me. What am I?
I am your mother's brother's only brother in law. Who am I?