Answer:
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
u always follow me but I am rarely seen
I am known for my natural tuxedo and marching
I spend the day at the window, go to the table for meals, and hide at night. What am I?
I'm a kind of cup that doesn't hold water, but makes a lot of noise repeatedly. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?