The hole in a cask is named for which kind of stopper?

Which word links part of a car, Mafia thugs and the outlaw of Sherwood Forest? A carillon is a set of 23 or more of which instruments? Which GM brand, discontinued in 2010, sold models called the Astra and the Aura? A case of arsenic poisoning is deftly solved in which author's 1932 story "The Tuesday Night Club"? In "Macbeth", Macbeth will not be vanquished until Birnam Wood comes to which castle? A castle at Villandraut, France, was built for the pope who moved which office to France in 1309? Complete the term for a short, light sleep: "cat___". A cat named Oil Can Harry was the nemesis of which heroic rodent, introduced in the 1940s, who lived in Terrytown?