Answer:
I run around the city, but I never move.
I heard of a wonder, of words moth-eaten. That is a strange thing, I thought, weird. That a man's song be swallowed by a worm. His blinded sentences, his bedside stand-by rustled in the night - and the robber-guest. Not one wit the wiser. For the words he had mumbled.
My first master has four legs, my second master has two. My first I serve in life, my second I serve in death. Tough I am, yet soft beside. Against ladies cheeks I often reside.
What can be underwater, under fire, on fire and taking water all at the same time?
What weaves webs as they grow?
You use it between your head and your toes, the more it works the thinner it grows.