The United Kingdom’s (UK) biggest spy agency, Government Communications Headquarters (GCHQ), has released its newest Christmas card — with a set of puzzles designed for young people who want to become secret agents in the future. Traditionally, the intelligence, cyber, and security agency sends out a card containing a Christmas-themed brainteaser to national security colleagues and partners worldwide. But this year’s card is full of puzzles for schoolchildren between the ages of 11 and 18. “GCHQ’s history is full of talented people tackling the country’s most complex challenges. If we’re to help keep the country safe, problem-solving skills are absolutely crucial,” the agency’s director, Jeremy Fleming, bared in a statement.

Mr. Fleming explained that he is keen on encouraging more students to take on science, technology, engineering, and mathematics (STEM) skills and helping develop the next generation of talent. “I want to show young people that thinking differently is a gift, and it is only with a mix of minds that they can solve seemingly impossible problems, just like we do at GCHQ,” he said. The answers to the Christmas puzzle will also be posted on GCHQ’s Instagram account and official website, the agency said. The security organization is based in Cheltenham, a town in Gloucestershire, England.