Answer:
I have Eighty-eight keys but cannot open a single door.
I get dirty when wiping things clean. What am I?
I am an English word that is as long as I am valued. What am I?
If you're looking for something sweet I know what to do. But if you don't like heat I'm not for you.
Lighter than what I am made of, more of me is hidden than is seen. What am I?
The answer I give is yes, but what I mean is no. What was the question?