Answer:
I am the book one can never finish reading
I plow and plow but never sow.
What language does a billboard speak?
I have memories, but none of my own. Whatever's on my inside is what is shown. If I'm ever different, it's because you changed me. I feel like a decoration, here for you to arrange me. What am I?
I am the tool for inspiring many. Buy me in the store for not much more than a penny. Don't overuse me, or my usefulness will go. What am I?
Often cooked as fillet, this meat comes from an animal that swims underwater.