Best medium riddles for teens with simple answers

I plow and plow, but never sow. What am I?

What kind of cup doesn't hold water?

You always carry me in your hand, always with you, from your birth till your death! I am a fruit. What Am I?

If A is for Apple and B is for banana what is C for?

I always come down and never ever go up? Think, think and think! We all just love it.

What do you call a guy who's born in Columbus, grows up in Cleveland, and then dies in Cincinnati?

I know a word which reads the same when written forward, backward or upside down. Do you?