I don't know about the number 1 funniest scene but the one where Dwight is trying to lie to Michael about where he was and Michael knows he's lying sticks out to me "Crentist...sounds a lot like dentist..."
Haha that always reminds me of: "I made a resolution to floss, and I did it; 12:01 January first, BAM! Blood everywhere."
The Pool Party episode where they all just get rowdy at Robert's mansion before he sells it is one of my favorite episodes from those last few seasons.
We won!! By quite a bit too. The host singled us out as the nerds early on cause we got so many right. We won $30 to the bar where it was hosted, a box of microwave popcorn, a copy of Pam's drawing of the office building, and secured our spot in the championship game.
Most questions were pretty hard for casual viewers. We had all been watching a lot of it recently which definitely helped. We were "Serenity by Jan". The guys sitting next to us were Battlestar Galactica and I think next week there's a Scott's Tots.