Enigma 396: The hostess’s problem
From New Scientist #1546, 5th February 1987 [link]
At a recent dinner party five men and their wives sat at the 10 places around the table. Men and women alternated around the table and no man sat next to his own wife. No man’s Christian name had the same initial as his surname.
Mrs Collins sat between Brian and David. Colin’s wife sat between Mr Briant and Mr Edwards. Mr Allen sat between Edward’s wife and Mrs Davidson. Brian’s wife sat next to Alan.
In the information which I’ve just given you, if two people were sitting next to each other then I have not told you about it more than once.
Which two men (Christian name and surname of each) sat next to Mrs Edwards?