Answer:
I make billions of dollars selling Windows. Who am I?
They keep secrets locked away. And you pass through them each day. For each one there is a key, They respond to sesame.
They are the shore's gallant knights.
It can be used onstage or to express admiration. What is it?
It keeps you on the ground and stops things from floating around. What is it?
What is always coming but never arrives?