Answer:
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
I get dirty when wiping things clean. What am I?
My seas have no water, my mountains have no rock, and my land has no grass. What am I?
What loses its head in the morning but gets it back at night?
I am a protector. I sit on a bridge. One person can see right through me while others wonder what I hide.
What language does a billboard speak?