Counting Logic

Mommy and Benjamin's Conversation in the car on the way home from school on Monday.

Benjamin:  "1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 20!"

Mommy:  "No, Benjamin.  It's 13, 14, 15, 16, 17, 18, 19, 20!"  (Emphasizing again) "13, 14, 15, 16, 17, 18, 19, 20!"

Benjamin:  (Speaking extremely fast) "It's 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 20!"

Mommy:  (With even MORE emphasis) "NO, BENJAMIN!  It's 13, 14, 15, 16, 17, 18, 19, 20!"

Benjamin:  "But what about FIVE-TEEN?" 

Well, there's nothing wrong with that logic!  :-)