Listening to Chris Evans this morning. He seemed very impressed by a maths trick. Take the last 2 digits of the year you were born and add them to your age. You get 111 (unless you were born after 1999). He was very impressed - yet the maths is blindingly obvious. Assume you were born in 1900 - you would be 110 now (111 if you had already had your birthday). So - not sure where he got 111 from. If you were born a year later, your age would go down by 1. It reminds me of another maths thing I saw on TV a few years ago. There were 12 maths questions (2 digit x 1 digit) - 2 people had to guess if the answer was even. (There were 8 right). One person said she could get 2 right answers. The other guy said he would get all 8 even answers. Everyone seemed shocked but he got them all right. No prizes for guessing how but he got a massive round of applause. It sometimes shocks me how easily impressed people are by maths "tricks".