Boznav interview questions

I went there for an interview and there are 3 rounds of interview. 1st round is quite simple where they check your communication skills, behaviour, ask questions to know about you. 2nd Round is operations round they will test your knowledge and also ask you job related questions. It lasted for 40 mins for me. Final round is written round and they give a task and u have to use analytical skills to figure out the answer it's easy but they make it sound complex to check your stress and patience level