Question: You can find them on plants. One is for music. Most have two. Someone may ask you for yours. Politely, you lend yours to another. Only if you are good you can play by it.
Answer: Ear -- Ear of corn, We say "Ear for music.", We have 2 ears, We say "May I have your ear?", We say "I can lend you my ear.", We say "Play by ear."
Question: My food and drink were left behind
by ancients from another time.
I grind my feet upon the earth
with strength come from a metal hearth.
My mind is trapped when I run free
when still, it wanders far from me.
What am I?
Answer: A car.