How many breeds of owl are featured on the Eeylops Owl Emporium sign?

Multiply this number by 49.

What is the number of the chapter in which Professor McGonagall cancels the Quidditch match between Gryffindor and Hufflepuff?

Multiply this number by 42.

In the Gryffindor versus Slytherin Quidditch match, in Harry’s third year, how many points is Gryffindor leading by before Harry catches the Golden Snitch?

Multiply this number by 35.

How many students take part in the Triwizard Tournament during Harry’s fourth year?

Clue

Number

Multiply this number by 28.

What is the house number of the Headquarters for the Order of the Phoenix in Grimmauld Place?

Multiply this number by 21.

How many chapters are there in HARRY POTTER and the Half-Blood Prince?