WorldQuant interview questions

Applied online. Contacted by recruiter. Interview was set up. The interviewer asked me a probability question. I answered it with confidence and the interviewer said it wasn't correct and was very adamant about it. So didn't really think on it too much but then moved on to python, sql and algorithm design questions, which were pretty straight forward. After the interview, I was curious to know the answer to the probability question, and I found out I did answer it correctly since it was a popular GMAT question. Thought it was a little unprofessional, and just lost interest in the company and didn't pursue further.

I have taken the online exam. The online exam is a bit baffling because most of the problems I don't think can be solved by brainstorming in 6 minutes. They were kind of problems that would take days or weeks even to come up with an answer. And one of the problems I would know for a fact is flawed so that there really is no answer without a qualifying statement. (I suppose I wouldn't even get a thanks for pointing that out.) Anyways, they ask you these semi puzzle questions that are supposed to be mathematical in nature, but I'm not sure if it would help them find someone that would deliver performance. Does anybody know what the firm's AUM is or what the performance has been inception to date? Is it better than the index? I would really like to know.