Meta Intern Software Engineer interview questions

Stopped by Facebook's table at my university's career fair to drop off my resume. Got an email in about a week saying they wanted to interview me at my university's career center. If I did well on my interview, they would schedule another one for me the next day. First interview was 30-min, one technical coding question and "Why Facebook?" Found out that evening that I was invited for another interview the next day. Second interview was 45-min, 3 technical coding questions and "Why Facebook?" (again) Recruiter emailed all my university recruits saying they would collect results and let us know within a week. Tuesday, got an email from my recruiter saying I did well on my interviews. She introduced me to a different recruiter, to whom I had to send my availability for a phone call to discuss next steps. I thought I needed to schedule another interview; however it turns out my recruiter was calling me to extend me an offer.