Answer:
Keep doing me to avoid lens dryness
You write on me and secrets I can keep in places never seen. I spin like a top. Though stiff as a board, I'm often described like a mop. What am I?
I am a place where time is told. I am not bought and I am not sold. What am I?
I have a head but never weeps. I have a bed but never sleeps. I can run but never walks. I have a bank but no money. What am I?
The more of me you take, the more I appear behind you. What am I?
What language does a billboard speak?