Better Communications interview questions

Interviewer asked the question like what is formula for gravity, what is 70 percent of 70 ,value of pie etc. I think this are engineering question and not relevant for this position.How will person from media background answer this question?

Interview was very good. They did't ask you any tricky questions. In first round graphic exam were conducted. After passing first round Second round of interview done. Interview done withing week of time.