Censer of Arguing Spirits

This tarnished and dented teapot appears like an unimportant mundane item. Sloshing sounds can be heard from within the pot when shaken, and it always feels warm to the touch. When the lid is removed, three tendrils of colored smoke rise from its blackened center. At the top of the tendrils are the smushed faces of 3 elderly men, all of which quickly begin to bicker amongst themselves. You can ask each man one question, and he will answer to the best of his ability. Once you have asked them all a question, they begin to ignore you and continue to argue amongst themselves until the lid is replaced at the top of the pot. It's unknown who these men were, but each seems to retain knowledge from their past lives. Once you ask one of the men a question, you can't ask him another question until 7 days have passed.