Question: At the end of the Chamber of Secrets, Harry gives Lucius Malfoy the diary, showing him that he knows it was him. In the Half Blood Prince we see Dumbledore at his desk mulling over Tom Riddle's destroyed diary - is this an error, or have I missed something? Was it not given back to Malfoy at the end of Chamber of Secrets?
Question: Does any one know the Japanese golfer joke Uncle Vernon was telling at the beginning of the movie?
Question: Considering how big the Basilisk is, how is it able to travel through the pipes in Hogwarts since so many of them are small?
Question: Hermione had to go to the hospital wing after partially transforming into a cat. How did she explain her condition to the hospital staff and/or teachers (if she had to miss classes), without revealing that she made the Polyjuice potion?
Question: Since Dumbledore canceled exams, how did the seven-year students know if they passed for graduation or not? Did they still take exams?
Question: Why does Professor McGonagall give Lockhart the task of catching the monster? She and the other teachers don't like him or trust in his abilities.
Question: When Harry and Ron show up late at Hogwarts and are caught by Filch, why does Filch take them to Snape and not McGonagall? I know Filch does not like any of the students because he's a Squib (a pureblood with no magical power) and he knew Snape would tell them off severely, but as Ron and Harry are Gryffindor students, they should have been taken to McGonagall no questions asked.