Answer:
What building has the most stories?
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
Dry though I may be, I am still a sea.
What has no hands but might knock on your door, and if it does you better open up?
If there are three cups of sugar and you take one away, how many do you have?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?