Oh Sam. Within 3 months of marriage, Sam's wife had a child. **Sam**: how is it possible? **Wife**: how long is it that you're married? **S**: 3 months **W**: how long is it that I'm married? **S**: 3 months **W**: after how many months of marriage was the child born? **S**: 3 months **W**: now total all the three n tell me **S**: oh! yeah it been 9 months. Gee, time flies.