Kantar Project Analyst interview questions

I had one phone interview. The interviewer asked a series of behavioral questions and then two case questions. He was relatively awkward and responded with each question asking "Ok, Nice."

It was an extremely thorough and involved process. I found the job on indeed, submitted my resume and cover letter and was offered a 1st interview by phone about 1.5 months later. After the 1st interview, I was offered a 2nd phone interview five days later (a case study was sent to me 20 minutes prior to the phone call). After the 2nd interview, I was requested to come for a 3rd and final interview event one week later. This final interview day consisted of three 2-on-1 interviews lasting approx an hour each, a math exam lasting an hour with GMAT style questions, and a 2.5 hour group case study.