Answer:
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
Not a comb or a brush but makes the hair feel plush. What is it?
Controlled by your hands and feet. It would be nothing without a street. What is it?
Built of metal or wood to divide. It will make us good neighbors, if you stay on your side. What is it?
You have it even if there is none.
When is it bad luck to see a black cat?