Indian Teacher’s Three-Line Square Puzzle Reveals How Easily Our Minds Make Assumptions. (AI Image) What would you do if your teacher walked up to the blackboard and asked you to draw a square using only three lines? Most of us would freeze — after all, a square, by definition, needs four sides. Yet that's exactly the challenge an Indian teacher, Raviraj Master, put in front of his classroom, and the way his students responded has now got the internet talking about something far bigger than geometry.One by one,...