And the single right answer is...?

Apparently...without googling each item on this list, I would say that the single right answer is Trivia.... Did you compile this list off of the top of your head? If so, the common denominator to this list would be YOUR memories.Add by EDIT: WITHOUT googling the list and cheating, I can answer a few..The name of Tom Mix horse.
The name of the RCA Dog who is waiting for his Master's Voice.
42
What a Church Key is.
That ALL beer is brewed cold.
Big Momma Thornton.
Who's on first? Abbot & Costello comedy routine
That "Frankie & Johnny were lovers" is not about a same sex marriage. Its a Country song.
That it's always 5 o'clock somewhere.
That you can tune a piano but you can't tuna fish. old borscht belt humor
Why there was a baby face on the bottle.
Mississippi John Hurt.
When the Cuyahoga River caught fire. a sign of pollution near Lake Eire back in the late seventies I believe
A B-9 Class M-3 General Utility Non-Theorizing Environmental Control Robot said ...? Guessing...but...Danger Will Robinson?
Fulda Gap.
Hof Corridor.
Formosan Strait.
Quemoy & Matsu.
Bikini Atoll. Nuclear test sight
Widdershins.Edited by Phat, : No reason given.