Greater Anglia interview questions

The interview is held via Teams. According to the manager, it should consist of two-stage interviews. If the candidate succeeded, then it moved into the face-to-face interview. I already got the feeling that they already had thier own ideal candidate, they do not show any interest in my experience. passing through questions very quickly, and it feels like they wanna wrap it up very quickly. There is specially one question which is bizarre, they asked me to propose an example where I had long term impact on something for at least two decades, when I was in my 10s, and this example should be something I have finished. The only qualified answer around the world that I could think of is the president of North Korea. The interviewer finally got the smile of: aha, gotten yah.