Nice work, some really great ideas and good presentation.
I played only against AI because I don't have friends. So I was a bit confused but I'm sure it would be much more fun with other humans. It would be nice if there was a way to skip ahead when practicing against ai.
The memory match minigame is not great for this kind of game, it would be better to chose games that involve players interacting with each other. The trivia is a bit better, but even still it feels like I am not interacting with other players but just playing a separate game from them. You need to involve other players, like for trivia maybe players can buzz in to answer, or maybe you can vote on which player you think has the right answer, or maybe you can ask another player for help, etc. I felt like the social deduction aspect was missing and that could add to the fun factor in a major way.
Overall it is a really fun concept, would be cool to see how fun this is when played with a group of friends.