Answer:
Lighter than what I am made of, more of me is hidden than is seen. What am I?
I am a rock group with four members all of whom died in plane crashes. Who am I?
I am easy to waste. I am unstoppable. What am I?
I am known for my natural tuxedo and marching. What am I?
I am the building with the most number of stories. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?