What Am I Riddles

Question: What is black when you buy it, red when you use it, and gray when you throw it away?

Question: I plow and plow, but never sow.

What am I?

Question: Soft and cuddly, I'll pull on your heart.
But take my last name and I'll tear you apart.

What am I?

Question: For now I must stay under the man who made me,
but when he dies I'll be as powerful as he.
They will watch and listen to what I say,
then some of their money to me they'll pay.

Who am I?

Question: What is it that no man wants, but no man wants to lose?