When a farmer was asked as to how many animals he had, he replied that all but two were cows, all but two were horses and all but two were pigs. How many animals did he have ?

When the farmer has Justin 3 animals, then all but two can be cows, all but two can be horses and all but two can be pigs. In this case the farmers has 1 cow, 1 horse and 1 pig....