By popular demand we have another fiendishly tricky maths puzzle for you, this time with a festive twist.

So, today is December 13th, and Annie, our resident fashionista is the office Santa Claus, so she will be making a list, and checking it twice.  This year Christmas will be on December 25th.  So, what is Annie’s name?

You may notice that this is very similar to our other tricky maths puzzle, but since that one is still baffling readers the World over we thought we’d stick with a good thing.  Pop your answers in the comments below.  There’s no prize but the glory of knowing your superior intellect.  The answer will be posted on our Facebook page on Christmas Morning, so if you need to know, you’d best like us.  You know you do anyway.