The next winner in our ongoing name x in y minutes contest is Ben Lynch, who wants to know how many Dow 30 companies you can name in 10 minutes.

These reader-suggested mid-afternoon timed quizzes have been a nice addition to the site. Since there are plenty of other good suggestions we haven’t used yet, I’m going to continue posting your quiz ideas and we’ll give away free back issues of mental_floss magazine as prizes. So, keep those ideas coming!

Take the Quiz: Name the Dow 30