Royal Society interview questions

I was asked to prepare and deliver an outline as to how I would tackle a specific project relevant to the work area. This was followed by several competency based questions.

1 hour long interview, competency based questions. Some questions threw me off. Panel interview with 2 employees who were very nice and easy going, comfortable atmosphere. The building and offices are also very nice. Seems like a nice place to work. The interview went well overall, but definitely the most difficult interview I have ever done- only because I haven't done a competency based interview before.