1. there are 132 stair cases at hogwards
2. 1.As of 2008, Harry Potter বই have sold over 400 million copies and have been translated into 67 languages.i
3. Dementors are deadly, magical, wraith-like creatures. Rowling revealed that they represent depression and that they were based on her own experience with the disease. The remedy to lighten the effects of a Dementor is chocolate
4. Hermione’s cat Crookshanks is no ordinary cat as he is half-kneazle.
5. Dementors don’t breed. They grow where there’s decay, like fungus.
6. The ট্যাটু on Sirius Black’s body are borrowed from Russian prison gangs. These are to identify a person as one to be feared and respected.
7. The ghost Nearly-Headless Nick was beheaded because a botched dentistry job. He was trying to straighten Lady Grieve’s teeth but instead she sprouted a tusk.
8. The secret code Arthur Weasley must dial into a telephone keypad to access the Ministry of Magic is 62442. The letters underneath those numbers on a standard phone spell out the word ‘magic’.
9. •Harry Potter, JK Rowling and the actor Daniel Radcliffe all share the same birthday – July 31st
10. Do not forget your Invisibility ছদ্মবেশ at the শীর্ষ of the Astronomy tower.