Brian Grim talks about the Pew Research Center's restrictions on religion studies at the April 2013 TEDx Via Della Conciliazione conference at the Vatican.
This 10-question Weekly Number quiz tests your knowledge about international religious freedom and its measurement.
All the answers to the quiz are found in the TEDx video. So, watch the video first to get a perfect score, or take the quiz first if you're up for the challenge.
When you complete and submit the quiz, you'll get to see the answers!