A teacher asked little Johnny if he knew the numbers 1 to 10 well.
“Yes, of course! My daddy taught me, even more than 10!”
“Good. What comes after three?”
“Four, “answered the boy.
“What comes after six?”
“Seven. “
“Very good, “said the teacher. “your dad did a good job. Now, what comes after ten?”
“A jack!”
This joke is included in the Black Book of Jokes. You can order it from here.