I have 2 questions about continuity
In Chamber of Secrets, Tom Riddle asks how Harry escaped with just a scar. But in Goblet of Fire he knows how and talks about it. Why did he ask about it in Chamber
also
In Prisoner of Azkaban, Auther Weasly says: "13 years ago, when you stopped, You Know Who..." but in Goblet of Fire its 1 year later and Voldemort says: "13 years it has been, and you all stand here before me". shouldnt it be 14 years?