I don't have a list, but PT 78's first set involves a "leader" game. I remember actually taking it on the actual test date and thinking, "Awww yeah, I got this!" And there was that one game involving a chairman and a scientist named Hsu (PT 26, last set).
25 is a pretty average age. I think 25-26 is the average age of incoming 1Ls at most law schools. I also don't think there's a hard and fast rule. Likely anyone 30 and over would be considered in that category. 28-29 might be a gray area.
@saraheq1 I had the same sequence: LR RC LR LR LG. I just searched on Reddit, and it looks like my first LR, which had 26 questions, was the experimental.
For those that had LR-LG-LR—LR-RC, with the 26 question LR passage being thE very first one, think that the first ten were harder than normal??? #4 and #5 tripped me up and ruined my timing for the rest of the section.