In February 1867, Johann Strauss II's "On the Beautiful Blue Danube" had its premiere in which city?

What term describes a machine, such as a reconfigurable robot, built from interchangeable smaller units? General George Patton's revolvers had ivory grips; he scoffed that only a pimp would carry which kind? Jiskha is an online resource offering help with what, so you won't have to say your dog ate it? Joe Strummer sang and played guitar for which British punk band? Josef Breuer wrote an 1895 book, "Studies on Hysteria", with which fellow Austrian? The "Joy of Cooking" recipe for drinks called fruit shrubs uses the white wine type of which liquid? The judge Shamgar slew 600 of which people with an ox goad; David slew just one of them with a sling and a stone? Julius Caesar's love for which queen of Egypt "needled" the Roman people?