PPD Assistant Scientist interview questions

I was contacted by an HR rep after attending a PPD career fair. Once I arrived, I was interviewed by three people- the first was my potential supervisor, the second was a supervisor for a different team, and the third was their supervisor. The interview questions were all supposed to be answered in a three-part format: 1) What was the problem, 2) What actions did you take to solve the problem, 3) What was the result of your actions. When I deviated from this formula they asked me to re-word my answers in the required format.