I don't get it... you mean the 1st wife will leave the table after eating and then the 2nd wife will take her place then the 3rd? Hmm... after leaving the buffet, will they let her in again? Coz you were saying they are paying for two. If he brings her 1st wife the 1st time, 2nd wife the 2nd time, and 3rd wife the 3rd time on that day, he would have paid for 6 persons. Ok, I admit I'm slow. Please explain.