Which actor, born Laszlo Loewenstein in 1904 in Austria-Hungary, played Ugarte in "Casablanca"?

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? Nicknamed "The Glove" for his defense, which guard was traded by the Lakers to the Celtics in 2004? Also known as "Memoirs of a Woman of Pleasure", which 1749 John Cleland work has often been suppressed? Also known as Y2K, which computer glitch was feared to strike at the end of 1999? AZT, also called zidovudine, was approved in 1987 to fight which virus?