A first grade teacher was having trouble with one of her students.  One day, she asked Juan what his problem was.  He replied, “I’m too smart for the first grade.  My sister is in grade 3 and I’m smarter than her too!”

The teacher took him to the principal’s office and explained the situation.

The principal told her that he would give Johnny a test.  If he failed to answer one question, then he would have to stay in the first grade and be quiet.

The teacher told Juan, and both Juan and the teacher agreed.

Principal (P): What is 3 x 3?

Juan (J): 9

P: 6 x 6

J: 36

P: The square root of 144?

J: 12

And so it went on like this.  The principal would ask Juan every question a third grader should know.  Finally, after about an hour, he told the teacher, “I see no reason why Juan can’t go to the third grade.  He answered all my questions correctly!”

The teacher asked if she could ask him some questions.  The principal and Juan agree.

Teacher (T): What does a cow have four of that I only have two of?

J: Legs

T: What do you have in your pants that I don’t have?

The principal gasps but before he can stop him from answering, Juan replies.

J: Pockets

T: What does a dog to that a man steps into?

J: Pants

T: What starts with F and ends with K and means a lot of excitement?

J: Firetruck!

The principal breaths a big sigh of relief and says: “Put Juan in the fifth grade.  I got the last four questions wrong myself!”