mind-boggling brainteaser shows how your brain ignores weird details. Meanwhile, a maths question for 7-year-olds baffled parents – and even a professor wasn't able to answer it.
And in other news, a teacher left a cheeky message on students' homework to check if they were reading it properly. And another teacher admitted: "I make one question on every test 'Who is your favourite teacher?' and I make it multiple choice and every single choice is me.".Read more on dailystar.co.uk