A teacher said to her student, “Billy, if both of your parents were born in 1967, how old are they now?”
After a few moments, Billy answered, “It depends.”
“It depends on what?” she asked.
“It depends on whether you ask my father or my mother.”
After a few moments, Billy answered, “It depends.”
“It depends on what?” she asked.
“It depends on whether you ask my father or my mother.”