Meta Internship interview questions

A coding challenge consisting of 2 questions that you need to solve in 45 minutes. The process was very slow, they took nearly a month to get in touch after the interview

Phone interview followed by skype. Eventually, you get to a testing phase. It is hard to know what they are looking for. They asked me a question that was the direct opposite of my area of expertise. I am asked them if the situation they asked about actually came up at the company. The interview said no. So, I guess prepare for problems that would never actually happen.