Brilliant.org knows how to appeal to the intellectually curious. Whether your middle school math lessons are a joy or a horror to remember, you can't help but get pulled in by the problems these guys throw at you.If you watch the Math Fundamentals ad in its entirety, you'll see that it starts by telling us that "Math is about learning a new way to see" and it ends with "See math in a new way". What a beautiful word loop.As far as the ad with the elephant goes, it's all about the sound. Check it out.