Yelp Summer Engineering interview questions

Drop of my resume at the carrer fair, got a first interview 10 easy question from a recruiter If you go around here you will find them. After the interview I was told that i passed to the next stage. The second round of the interview was 45 minute log skype( no face to face interview, skype was just used a phone mechanism). Then a week after I was told that I passed to the next stage 2 45 minute long interview. was given an offer later on.