General Mills Marketing Communication Planner interview questions

I was a contractor so I had great connections with everyone at GMI and within recruiting. I applied for this position and they had me take a personality test, a math test (think back to 8th grade when questions like "Train A left at 10:00am and train B left at 3:00pm..."). In marketing, you also have to write a case study. They sit you down in a small room with a computer, pad of paper and a calculator. There were multiple questions you had to answer and a bigger overarching marketing campaign question. EX: "If you were a cereal brand, how would you market a new product." You would then have to take your case study and present it to the marketing/hiring manager you are interviewing with. After the case study part, you come in again and I met with 4 different people, all separate meetings. The process is extremely difficult, even with having marketing experience in the company.