Yesterday, my daughter celebrated her second birthday and today she's in the fourth year that she's been alive. How can this be true?
It is true, I know 'cos it's my daughter. I'm going to give that statement to my class this week to see if they can figure out how it can be true.
In case you hadn't already worked it out... She was born on 31/12/2014. She therefore spent sometime (not much) in 2014, also 2015 and 2016. As it's now 2017, that's a fourth (calendar) year. The years are actually irrelevant as the answer is she was born on New Year's Eve and two years and one day later, it's now New Year's Day.