Answer:
What goes up but never comes down?
It is something you make after you've weighed your options.
What do you have in December that you don't have in any other month?
I have eighty-eight keys but cannot open a single door? What am I?
Major or minor I can be, when you touch me make sure you that you’re on the right key.
Two little holes in the side of a hill. Just as you come to the cherry-red mill.