Tripadvisor SEO Analyst interview questions

The entire process took over 2 months. I originally applied on online, was contacted by HR and set up a Skype video call (yes, weired) with the hiring manager. Then after about two weeks, the hiring manager and another manager of the team had another round of Skype call. Then I heard nothing from the HR for 4 weeks. I reached out 3 times and finally the HR got back to me and will set up an onsite interview to have me meet with the team. The interviewers asked me lots of tricky questions that are not related to SEO which really confused me...