SLB Field Engineer interview questions

It's the group dynamics interview so much pressure.

First, I went to an on campus presentation. I was told about 1st round interviews which took place the next day. Mostly it was leadership and background questions and then there was a logic question at the end. -- You have 200 Goldfish and 2 Piranhas. How many goldfish should the Piranhas eat to have 99% Goldfish in the tank? Answer:2. Then, now that you have 198 goldfish and still 2 Piranhas, how many more goldfish should the piranhas eat to have 98% in the tank? Answer: 100. I got those right. I received an email about 4 days later saying that I was invited to 2nd round interview where I was to be flown to Tulsa, OK for a 3 day interview. This happened about a month later. There was a group session the first night, another group session, a tour, and dinner on the 2nd day, and then a private exit interview the last day. I just got back from this a day ago and am expecting to hear back within a week.