A popular 1940s style of ankle socks shares its name with a nickname for Robert. What are they called?

What is a political subdivision of Switzerland called? Which politician was nicknamed "Tail Gunner Joe"? What is a polygon with four sides called? A popular 1889 John Philip Sousa march was commissioned for an awards ceremony held by which newspaper? Which popular 1960s hairdo shares its name with an insect's home? Which popular 1990s sitcom starred Jerry as himself? A popular big band became which man's alone after his brother walked offstage during a 1935 performance? Which Maurice Sendak story was turned into an opera by Oliver Knussen, first performed in 1980?