By timing the eclipses of Jupiter's moon Io, Danish astronomer Ole Romer showed in 1676 that what travels at a finite speed?

Annie Lennox joined David Bowie and the surviving members of Queen on "Under Pressure" at a 1992 AIDS-awareness tribute… Annie Sadilek, an immigrant girl from Bohemia, inspired the title character of which 1918 novel of the Great Plains? Annie Whitehead, Kid Ory and Tommy Dorsey are all known for playing which instrument? Annie Wilkes, John Coffey and Carrie White are characters created by which author? Which word can mean both "annoyed" and "to pass from one side to the other"? The plant family Ranunculaceae is commonly named after which flower? Which band topped the charts in 1980 with "Another Brick in the Wall, Part II"? Which gem's name is also a term for a baseball infield?