A young female teacher was giving her class of 6-year olds a
quiz.
"Behind my back, I have something red, round and you can eat
it," she said: "What is it?"
"An apple," replied little Raymond.
"No," said the teacher. "It's a tomato but it shows that you're
thinking. I now have something round, a greenish color and you can
eat it."
"An apple," replied little Ian.
"No, it's an onion, but it shows that you're thinking," the
teacher said.
Little scruffy Johnny at the back of the class finally piped up
and said: "I have something under my desk that's an inch long,
white and it has a red end."
"You dirty minded little boy!" exclaimed the teacher.
"No it's a match, but it shows that you were thinking." he
answered.