Tomorrow is my birthday. You get one guess for how old I’ll be, with these two clues to help you. It is a prime number and if I live to be 100, tomorrow I will have lived exactly 2/3 of my life. I doubt I’ll live to be 100, but I did have a great-grandmother who lived to be 98, so you never know. When I look in the mirror, I definitely look my age. I look my age so... Read more