Answer:
Slayer of regrets, old and new, sought by many, found by few.
Who is that with a neck and no head, two arms and no hands? What is it?
What force and strength cannot get through. I, with a gentle touch, can do. Many in the street would stand. Were I not a friend at hand.
What is never used unless it's in a tight place?
What goes around the world and stays in a corner?
What language does a billboard speak?