The Medford Public Library is co-sponsoring an adult trivia night, the “‘How Did You Know That?” edition, via Zoom. Test your knowledge by answering 60 trivia questions (four rounds of 15) created by librarian and trivia host extraordinaire Kat Lewin. Recruit some teammates or play solo — the choice is yours! Be prepared to answer a hodgepodge of general knowledge trivia questions. There is a 50-team limit. Register through the library’s online calendar.