Colgate-Palmolive Graduate Engineer interview questions

In my first interview I was interviewed by the hr manager. In the process of case study I was interviewed by both the hr manager and the technical director. The same with the case study took place in my final interview. Both of them were really friendly. The questions were based on my cv and basically on my studies and prof. experience. The duration was about 30 minutes for the interview and almost 2 hours for the case study.