Answer:
Who keeps the ocean clean?
I am the only word that looks the same when spelled upside down.
A young man wants to have me but when he has me he no longer wants me. Blade in hand he attacks me and does his best to remove me. Yet he knows that it is all in vain.
I begin and have no end. Eventually, I will be the ending of all that has begun. What am I?
I have three eyes and only one leg. Obey me or you will be sorry.
Often cooked as fillet, this meat comes from an animal that swims underwater.