Answer:
What flies forever, Rests never?
The stack just might be sent all over. Full of what's new, yet it's nearly obsolete.
The older they are the less wrinkles they have.
What bird can lift the heaviest weight?
A house full, a yard full, a chimney full, no one can get a spoonful.
What did the piece of wood say when he saw the screwdriver and screws approaching?