In Greek mythology, what is Charon's job on the river Styx?

Charlton Heston played a survivor of a germ-warfare apocalypse in which 1971 thriller? In the 1959 film "Ben-Hur", Charlton Heston races what in a famous action scene? What is the nickname for a work shift running from about midnight to 8 a.m.? Charon is the largest moon of which dwarf planet? The human-rights manifesto Charter 77 was smuggled out of which country and published in Western newspapers in 1977? Chartered in 1769, which Ivy League school is New Hampshire's oldest college? Chartered in 1781, which state capital is named for a city in southern France? Hammerfest, which received its town charter in 1789 and is often called Europe's northernmost town, is in which country?