This year’s puzzle Christmas card from Chalkdust Magazine, designed by Matthew Scroggs, contains 10 puzzles. Answering them correctly will guide you in completing a Christmas-themed picture. Here’s a printable PDF.

And King William’s College has released its annual general knowledge quiz, which appears as fiendish as ever. (“During 1924, in what could one learn of the ordinariness of Chandrapore?”) MetaFilter is sponsoring a shared Google Sheet where solvers can collaborate; answers will appear on the Guardian website on January 15.