Many English words begin with CON. These letters can be replaced by CORN without significantly altering either the pronunciation or the appearance of the words.
The answers to the following riddles require the substitution of CORN for CON in some everyday terms. In order to answer the riddles correctly, one need only be able to pretend that cornstalks engage in activities similar to those that occupy the time and attention of people.
Lazerson, Lynn Louis and Lazerson, Barbara Hunt
Word Ways: Vol. 15
, Article 21.
Available at: http://digitalcommons.butler.edu/wordways/vol15/iss2/21