Countdown Desk Calendar
The Countdown Desk Calendar is a yearly calendar originally produced by Infocado and now Carousel Calendars, and based on the television show Countdown. First published in 2007 (for the year 2008), it originally had 365 pages (366 on leap years), each with their own two puzzles; a letters round or a numbers round, plus a conundrum. Answers are revealed on the following day's page. Since the 2019 calendar, the weekends have been combined on one page, meaning only 12 new puzzles are given each week instead of 14.