Here are a few suggestions for this challenge which I think might make it interesting.
1) The challenge can be played on a monthly basis with different teams picked randomly.
2) Each team should post the answer within 24 hrs of the posting of the question otherwise a point will be given to the opponents.
3) We could also ask questions in packs of 6 and increase time to 48 hrs. The questioner in that case may be appointed by the captain.
4) Questions should be posted within a time limit ( say 12 hrs) of posting the answer and the same person who answers should post the question.
5) The scoreboard should be put on top of the thread and be constantly edited by the organiser (Angi).
6)Individual scores would also be good. The two best scorers could become captains for the next month.
7) If its a success we can do similar things for categories other than cricket like -pizza toppings

.
8) A correct answer should be acknowledged within 24 hrs otherwise -1 for the team.
9) Newbies are welcome but in pairs. (look who's talking

)
Angi its upto you to decide as these are only suggestions. I hope the moderator does not have any objections.