TED-Ed, run by the same nonprofit that brings us TED Talks, is building their library of educational content by producing animated shorts that challenge young viewers to use their brainpower and think outside the box. A lot of the content on this channel is better suited for older kids because some of the topics (like the ones in the series "Questions No One Knows the Answer To") are a little too abstract for younger kids. Personally, we love the videos that ask viewers to solve riddles. Now, in all fairness, I couldn't solve the one titled "Can You Solve the Bridge Riddle?", but my son and I had a blast trying to figure it out.