It's a brain teaser, and a shorter joke will do.

1。 Customer: "Why doesn't the wine you sell smell of alcohol?" The waiter smelled it and said, "Oh, I'm sorry, I forgot to mix your wine."

2。 Customer: "Buy a catty of meatballs." Shop assistant: "Please pay eight Liang food stamps." Customer: "How to pay food stamps for meatballs?" Shop assistant: "There are eight or two buns left in a catty of meatballs."