Riddle: There is a very popular restaurant in the city, called Da Good Burger. It's slogan is strangely called "Served 49 times'. A girl named Sarah coincidentally is the forty-ninth customer in that particular restaurant. When Sarah finally gets her burger, the cashier tells the people behind her that they should go back to their seats so they can make the burgers again. Like any agitated and hungry customer, the rest of them complain, but trundle back to their seats. When the burgers are ready again, Sarah is--you guessed it--the forty-ninth person in line, and she is still always the last person to get her burger while the others behind her get mad. How does she do it?
Answer: The slogan "Served 49 times" literally means that the burgers are served 49 times before they have to cook them again, which takes about thirty minutes, since the food is pre-made. Sarah cleverly learned this trick and skips to the forty-ninth spot. Mostly because she enjoys being the last person to get the burger while the people behind her complain.