The boy said, "Madam, I should be in Grade 4. I am smarter than my sister & she's in Grade 4".
The Madam had heard enough and took the boy to the principal. The principal decided to test the boy with some questions from Grade 4.
Principal: What is 3+3?
Boy: 6.
Principal: 6+6.
Boy: 12.
The boy got all the questions right. The principal told the Madam to send the boy to Grade 4 immediately. The Madam decided to ask her own questions and the principal agreed.
Madam: What does a cow have 4 of that I have only 2?
Boy: Legs.
Madam: What is in your...