It was a video interview, and There were three situational questions - you had a couple of minutes to prepare and the to answer, and there was also a Case Study questions, for which you are given 10 minutes to prepare and 5 minutes to reply. The mistake which I have made was: you need to conduct a research on Unilever's brands, not just on Unilever as a whole, as some of the questions involved situations which actually happened with their brands; in addition, this would be a big plus for case-study question. Also, despite you have several attempts to record the question (3 attempts per question), it is hard to prepare for such questions in several minutes.