Let me have some fun by trying it:
1-What is your hobby??
My line is actually PR/Communications. So i will answer this way:
My hobby is actually socialising, simply because my personalities are outgoing and people oriented and I just feel comfortable and exciting to meet up new people. Therefore, I do actively attend various of events such as seminar talks, exhibitions, having official and unofficial meet up sessions with internal parties such as colleagues from different departments, external parties such as media friends, suppliers, business partners etc, build up good rapport with everyone I newly know or known for long time.
2-If in your team, u find a person that is not trustable.. how are going to manage it?
I will keep this thought to myself and I think it's not the best time to open discussion with my superiors for further action, I will also keep up working relationship with him as usual as I know it's not fair to suspect him without any provens on hand. Secondly, for every and any opportunities that come to me to investigate this person, I will grab it and from there accumulate convincing evidence such as signed documents, emails etc. Once obtained enough evidence, I will only make record to my superiors.
Like this can or not?

i'm so honest when answer the 2nd question..haha..