Readers: Think you know your Baltimore? Try answering our weekly trivia question. Some weeks will be ridiculously easy, some weeks a bit more challenging. Here’s last week’s trivia:QUESTION: What songwriter, an Owings Mills High School graduate in the late 1980s, co-wrote a No. 1 Billboard hit?ANSWER: Kevin Kadish, a 1989 OMHS grad (and 1993 University of Maryland, College Park grad), co-wrote 2014′s “All About That Bass” with Meghan Trainor.