This is not really an SF question, but about a short story by Isaac Asimov, so I think it fits. In one of his many "mysteries", someone asks for a rather short word with three double letters in it.
I don't remember whether it is among the Black Widowers, or the Union Club or any other series of this kind. Or maybe even among the Azazel ones, in which case it would be either Fantasy of SF, (depending on whether Azazel is a demon or a creature from a more advanced civilisation, an ambiguity the Good Doctor insists on maintaining). Anyway, I would like to find the title of this story.
Edit: I have been racking my brain about Paulie_D vs Clara Diaz Sanchez, and something came back. The fact that the word was "committee" rather than bookkeeper or any other one was not important per se. The point was that there was a brilliant but surly kid who had a clue but he refused to tell it to adults, considering them all as idiots. Until one adult was bright enough to guess his enigmas, I think there were more than just the one about "committee", and he agreed to tell him his clue.