Rishi: Two from five equals one.
Teacher: Now you know that’s not right!
Rishi: Yes, it is.
Teacher: Give me an example.
Rishi: The word ‘alone’ has five letters. Take the first two away, and you’re left with ‘one’!

Teacher: Why are you so late?
Boy: I dreamt that I was at a football match and it ran into extra time, so I had to stay to the end.