Julie was asleep in het hotel room and was suddenly awakened bij a knocking on the door. When opening the door the man in front of her said "Oh, I'm sorry, I made a mistake, I thought this was my room. Julie watched the man walk down the corridor into the elevator. She quickly went inside to call the front desk. Why did she do that?
Two lama's were facing in th eopposite directions. One looking north, the other looking southwards. The Lama's are in an open field with nothing around them. How can they magage to see eachother without turning around or moving their heads?