Answer:
What wears a coat in the winter and pants in the summer?
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
Without this, eating food and Steven Spielberg's career would be very different.
Where do you go in through one hole and come out through two holes at the same time?
What can you lose that will cause other people to lose theirs too?