If you've not seen Ted-Ed riddles, you are in for a treat. I've written about them here and here and here. This is the second Ted-Ed riddle that I've worked with Ted-Ed to create. It's been so much fun, and the kids love working on them. I love that anyone can customize a Ted-Ed lessons. I will blog very soon about how to customize a lesson, as I just did one and assigned it for homework. It was super easy. For now, enjoy the riddle!