Fragen im Vorstellungsgespräch bei MediaPlus Digital

I was invited to interview for the Client Servicing Executive position. Due to a personal issue, I had to request a last-minute reschedule. The HR is very kind and understanding, helping me rearrange the interview. During the session, the interviewer asked several questions about Digital Marketing knowledge and how I typically handle difficult clients. I received the outcome of my interview within a week after my interview, which I appreciate at least they providing the outcome.

Interviewer asked really stupid questions like "if I could be an animal what would I be?" and "how would you describe the colour purple to a blind man?". How are these relevant to an interview??