Which airline invited travelers to "fly the friendly skies"?

Filling which tanks with air makes a submarine rise to the surface? What airborne nickname was given to 1920s Olympic distance runner Paavo Nurmi? Airing in 1983, the final episode of which sitcom earned a 60.2 Nielsen rating? Airline steward Gaetan Dugas, who died in 1984, was famously but wrongly labeled "Patient Zero" of which disease? Planes lined up with the runway just before landing are said to be on what? In 1797, Andre-Jacques Garnerin made the first descent of what kind, dropping from a balloon over Paris? "Aja", "Gaucho" and "Pretzel Logic" are albums by which group? Which day of the week, nicknamed "hump day", is named after a Norse god?