When this teacher gave her students the riddle of the week, she was not expecting her first graders to have deeper responses than most adults in the world. https://twitter.com/bretjturner/status/948336006054395904 https://twitter.com/bretjturner/status/948733803819757568   Are you smarter than a 1st grader? Hit us up on Facebook and Twitter to share your answer to the the deep riddle.