In the spirit of Punctuation Day I thought it would be fun to post this challenge for all you writers and editors. It's a puzzle I was given by my high school senior English Composition class teacher. And yes, I got it right (smile). Here is the challenge. Punctuate this sentence. And remember, it is one sentence - you cannot use a period except for the very end. *** Where John had had had Mary had had had had had had had had the teacher's approval *** The correct answer is below - do not scroll down to see until you have punctuated it yourself or unless you give up. Where John had had "had," Mary had had "had had;" "had had" had had the teacher's approval.