Strange interview process. Recruiter pushes back on your answers to see how you respond. Asking marketing based questions for OPs role. Not enough questions on my actual background in first round

There were some of mini brain teasers in each interview but generally the questions basic interview questions. Had 4 interviews in total with HR and the team lead. Asked a bit of mental math and also cases related to the role I was applying for. Interviewers were nice and prefer a more conversational approach to answering questions.