Just look at this piece of paper. It's impossible!
When I am training people in problem solving and decision making I place one of these on each persons desk so that when they enter the room they are immediately confronted by an object that challenges their thnking. It sets the tone for the workshop and it's a great way to get people talking. Instructions for makng this 'impossible' piece of paper can be found in this YouTube video: https://lnkd.in/eWeJKhw