Meta Software Engineer Internship interview questions

First I had a phone screen interview with a software engineer from one of the teams which included 15 minutes of behavioural questions and questions regarding my background, and for the rest of the 45 minutes I had a technical question. On the next stage I was invited for an on-site interview, I had the same format of interview like the first one, but the questions regarding my background were with more depth and the technical question was harder.