Thriller/Horror movie ID help needed

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I have two movies that I have been trying to ID.
The first one is where there are people playing a "game" and they have to choose either jug A or B to drink, but they don't know which one contains water and which one contains acid. I thought this was from "Would You Rather" a 2012 film on Netflix, but I just rewatched it and it wasn't in there.
The second I saw an ad for years ago but never actually saw it. It was about a group of friends. One friend pretended to be dead to get back at everyone/someone at a party, but one of them freaked out and went to chopping up the body in order to get rid of it. They found out she wasn't dead, but now she actually is etc.
If anyone can help I would appreciate it.



Second one could be Sorority Row / The House On Sorority Row?