Misc: About one-tenth of the earth's surface is permanently covered with ___?

Questions

what was the name of romeo's personal servant?

who said, "why the devil came you between us, i was hurt under your arm"?

what was the name of macbeth's castle?

what new title was macbeth greeted with after returning from a victorious war?

name the two sons of king duncan of scotland. (macbeth) and ?