Meta Software Developer interview questions

Phone interview and then on site. In the phone interview, they ask me to solve the 3 sum problem (check leetcode) and the bucket anagram problem. In the on site interview, 3 interviewers ask me three algorithm problems and also the behavior problems. Then there's a brief tour to the campus.

They found me at SO careers for some reason. First we had a HR with nothing really particular then an other skype/phone interview with real time coding. The guy was ok and friendly, answering all my questions. It was the usual American style interview with absolutely meaningless basic CS questions.