THE answer

A few days ago I was giving William a bath. He wanted me to ask him questions so I was quizzing him on things like "what is 2+3?" and "what do you get when you mix blue and red?", but after a while I started to run out of interesting questions until I scooped a clear glass of tub water up and asked him "Is this glass half full or half empty?". He started to answer but was startled by the complexity of the question; he paused for a moment, staring at the the glass and then slowly said: "I think it's half full".