Alex and Robbie are playing a game inside of an audience. Robbie is pretending to be a mind reader. Alex asks a member of the audience to pick something in the room for Robbie to guess while Robbie steps out of the room. The person says a ruler and Robbie comes back in into the room. Alex asks, "Is it the piece of paper?" Robbie says, "No." She asks, "Is it the sun?" He says, "No." She asks, "Is it the chalkboard?" He says, "No." She asks, "Is it the ruler?" He says, "Yes."



Alex and Robbie must have planned it all along that the 4th question will be the answer.