These TED Ed riddles can be used to engage students in a wide variety of activities that require them to use various cognitive skills including analytical thinking, problem solving, strategic thinking, decision making, critical thinking, and many more.

TED - YouTube. The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more.

TED-Ed Originals are our signature content: short, award-winning animated videos about ideas and research that spark the curiosity of learners everywhere. Every TED-Ed Original represents a creative collaboration between experts in their field.