Meta Product Manager interview questions

My first, and second-round interviews were at HQ. Facebook has three types of interviews: Product Sense, Product Execution, and Leadership. My first round interview I met with two people, one for Product Sense, and one for Product Execution. My second round interview I met with three people, one for each category. Yes, Product Sense, and Product Execution interviews are done twice. Product Sense: this interview revolves around questions like "What would you build?" "Suppose we wanted to improve the photos experience." The interviews are trying to get at your sense from product. Product Execution: here, questions like "Newsfeed engagement has decreased 2% week-over-week. why?" or "You're sitting with a data analyst, and you know there's a mobile problem in our new release. What would you ask him?" Leadership: here the FB team is trying to figure out if you're inspiring, if you work well with others--it's a behavioral interview. Be expected to answer questions such as "Tell me about a time when you experienced a challenge building a product. What did you do?" or "What's your biggest accomplishment?"