I had one interview on one day. It was made up of a 1-hour test followed by a 1-hour interview. The idea was that you sat down for an hour in the test and thought about some hard maths problems, then talked for the hour-long interview about what you had solved. The advice given by the college was, "do three out of the ten questions, and more if you have time." - my advice would be to try and solve as many as you can.

There were two interviewers - a fellow and a PhD student. Between them they kept me calm, encouraged me, and brought out the best mathematician in me. They didn't ask about my personal statement.

In the interview itself, we spent around half an hour talking through my test solutions. The interviewers seemed very happy with them, so after that they came up with some more classic maths puzzles for us to think about. They made me feel very at ease and confident in what I knew and what I could learn there and then to solve problems.

Talking to current students who knew the interview format.

Nope!