Chinese reality

A schoolmaster told me that he was preparing one of the boys for an interview to read Chinese at Oxford. They were discussing Chinese characters and talking about the descriptive elements within those characters. In the textbook they were looking at, there was the character for "reality" which was composed of three elements: a table at the bottom, an eye above it and the number 10 above the eye. This was supposed to mean that in the view of the Chinese, something is considered to be real if 10 eyes (presumably 5 people) agree that they see it. In the interview, the question about the make-up of Chinese characters came up and the boy trotted off that example. "Oh not that old bluff!" the interviewer exclaimed, "Give me another example!" Who was bluffing whom?
Rather different from my friend's daughter's interview the other week for St Paul's Girls' School. She was asked to comment on a photograph showing Father Christmas holding a kit kat bar with a sign at the bottom saying "Only 106 calories". I don't know how obsessive Paulinas are about their weight.