I had a phone interview with a recruiter who didn't seem to be very interested in me. They were rushing me off the phone, and it felt very much like I had been talking to a telemarketer. I had two of phone interviews with two PMs. They were very friendly people, but it did seem like they kept trying to summarize my answers for me (mansplaining anyone?). One of them tried to "grade" an answer on the spot, saying I got all the answers right except one item....and it turns out I did say that. Perhaps he didn't hear me, and I didn't want to correct him (I was already being mansplained to death). Not sure I am convinced FB is doing much to increase or help diversity on their end, judging from this interview process. You should study the questions here on Glassdoor. Many of the questions here are what was asked of me on my phone interviews.