For the holidays, we've decided to collate all the monthly problems for November till January into a big bundle! These are our brand-new 2015 Holiday Problems. Check them out and share the mathematical love with your friends.
The 2015 Holiday Problems can be found here (download link) and below.
This month's problems will be due at 11:59 pm on Sunday January 31 and the February problems will be released the day after on February 1. If you have any questions, feel free to email us (email@example.com) or comment below.