In cribbage how much do you score with 2 jacks 2 queens and a king?

Well, J-Q-K is a run in Cribbage (one point for each card in a run), so you would count the run three times with a different Queen each time, so that would be 9 for the triple run. Then, you get two points for each pair, and with three Queens, you have three pairs that you can count, so that is 6 for the pairs. You don't have any combinations that make up 15, so your total is 15. I'm assuming that you are counting points for the Jack (if any) separately, as well as any Go during the play.