Chances are you first started calling dibs back when you were a kid on the playground. Coincidentally, the playground is exactly where the phrase is believed to have menu
A quorum is the minimum number of people who must be present to pass a law, make a judgment, or conduct business. Quorum requirements typically are found in a court, legislative assembly, or corporation (where those attending might be directors or stockholders).
A conundrum is a problem or puzzle which is difficult or impossible to solve. [formal] ...this theological conundrum of the existence of evil and suffering in a world created by a good God. [+ of]