Answer:
What building has the most stories?
What letter comes next: O T T F F S S ?
What is as big as you are and yet does not weight anything?
There are several different kinds, but the one you pick doesn't do its job. What is it?
When it is alive we sing, when it is dead we clap our hands. What is it?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.