Question 9 imho is the most German one ("When someone says 'we should get coffee sometime,' you understand this to mean:"). It depends on context a bit obviously, but most Germans are sincere about it. You either propose coffee or you don't. However, there's a subset of Germans who seem to propose coffee and then don't follow up themselves, but it's not just a phrase. If you are the one to follow up, they'd join you.…
Personally I thought the 6th question about the rules was the most German one, sticking to the rules no matter what (that would be actually the least Chinese one, where rules are made up just to exist, but not to enforce).
Struggled most with last two questions, too many correct options to answer.
German -33% Autistic -36%
Apparently: "You probably ended up here through social media, which means someone you follow scored either Both or German. They sent it to you as a question or a joke. You are their control group."