Many, many readers know more about this than yours truly. But here’s one which should settle it:

Actually Groucho didn’t ask this question to flummox people, it was a consolation question he’d ask when the contestants didn’t win any money legitimately, so they wouldn’t go away empty handed (sort of a 1950’s version of “lovely parting gifts”). Needless to say, Groucho was a liberal Democrat, but I’m not going to get overly analytical here – it was a nice gesture. He had a set of questions he’d use: Who is buried in Grant’s tomb?
What color is an orange?
In what sport is a basketball used?
What insect is flea brained? (this threw more people than Grant’s tomb)
How much does a penny postcard cost?
Technically, as Grouch once pointed out, no one is BURIED in Grant’s tomb but Grant is ENTOMBED there.