Meta Software Developer interview questions

Initial 45 minute screen: whiteboard coding problem, algorithmically simple, but with oddities. Full loop: 6 x 45-minute sessions: 2 coding, 2 design, 1 cultural/technical (tell a story about a difficult experience and how I overcame), 1 lunch (off-the-record chance to ask tons of questions about company culture)

Phone screen test of duration 45 mins where interviewer started with briefly describing what he works on and straight away went to asking the interview question. Towards the end he left 5 minutes for me to ask questions.