Australians use the word "jumbuck", heard in the song "Waltzing Matilda", for which animal?

Which adjective meaning austere or frugal comes from an ancient Greek city? A 1967 Australian referendum allowed which people to be counted in the national census? Which Australian golfer, nicknamed "the Great White Shark", won the British Open in 1986 and 1993? Australian composer Arthur Benjamin wrote an opera based on "A Tale of Two Cities" by which author? Which is Australia's largest desert, first crossed in 1875 by Ernest Giles and named for a monarch? Austria-Hungary declared war on which country on July 28, 1914? Austria's 5,000-schilling banknote honored which composer, who died in 1791? Which Austrian archduke became Emperor of Mexico in 1864 and was executed in 1867?