Is there life in outer space or not? Baseball or basketball? To be or to have? Chicken or beef? The real speaker knows how to charm the audience with the greatest dilemma, predicting the opinions thanks to a supernatural intuition... or a more practical cheating technique!
In Ostrakon, you take the role of a Greek philosopher, posing questions on assigned topics with only 2 answers. The other players decide which of the two answers suits them, and the philosopher secretly votes with the side he thinks will outnumber the other. If he is correct, he scores points equal to the number of players who voted against his choice. If he is incorrect, he scores nothing. So its best to pick questions with roughly equally viable answers.