The Humbug from
The Phantom Tollbooth will tell you that the answer is "SEVENTEEN!!"
And the Dodecahedron from the same book will challenge any of you who disagree with my answer with the following statement: "As long as the answer is right, who cares if the question is wrong? If you want sense, you'll have to make it yourself."
Therefore, my answer is correct, and any question that disagrees with it is just the wrong question

Conversely, the answer may be "Poe wrote on both," made up many years after the original riddle due to people being frustrated that they couldn't solve it, and Lewis Carroll's frustration at having to explain over and over that the riddle was
supposed to be unsolvable.
Then, too, there is the possibility that the answer is "The One Ring, which will necessitate three very long sequels that were kinda better as movies because the huge whacks of unrelated poetry were taken out," although Bilbo clearly cheated.
And if you don't like any of those answers, I just finished rereading
The Dark Tower IV: Wizard and Glass in which the final, most important answer is "because it was stapled to the chicken."
Have I won yet?
