- Ursula, Maciejewski, and the horse trainer like hamburgers. Marie and the person who gave 16 eggs prefer cheeseburgers.
- Ursula, Nagowski, and the florist like hamburgers. Ralph and the person who gave 22 eggs prefer cheeseburgers.
- Ursula is the horse trainer's cousin.
- Sean and the person who gave 1 eggs each had different dinners last night.
- Ralph is not the person who gave 1 eggs, nor has the last name Forsberg.
- Forsberg isn't the engineer.
- The person who gave 1 eggs is not named Maciejewski.
- Marie went with Regoli to the amusement park one day. The person who was the engineer nor Denis gave 13 eggs. All five people are mentioned in this clue.
- The person who gave 16 eggs,and the florist have known each other for years.
- Ralph isn't Regoli
- The horse trainer, nor the person who gave 1 eggs, isn't Galitzer.
- The quack, nor the person who gave 16 eggs, isn't Forsberg.
- The person who gave 13 eggs,and the quack have known each other for years.
- Galitzer isn't the quack.
- Maciejewski, nor Denis, wasn't the person who gave 4 eggs.
- Ralph is the horse trainer's cousin.
- Ursula is not the person who gave 13 eggs, nor has the last name Galitzer.
- The mathematician, nor the person who gave 1 eggs, isn't Nagowski.
- The person who gave 4 eggs,and the horse trainer have known each other for years.
- The person who gave 13 eggs,and the horse trainer have known each other for years.

I give up!