Witches and wizards read The Daily Prophet.
The newspaper is called "The Daily Prophet." It is the primary source of news for the magical community in the Harry Potter series.
Because they are witches and wizards.
the turn into chocolate frogs
No. Hogwarts is a fictitious school, from the Harry Potter novels. Many of the people, creatures, and places in Harry Potter are fictitious. Wizards and witches only appear in fantasy stories such as Harry Potter.
Not sure if I spelled it: right Diagon Alley
Wizards: Salzar Slytherin and Godric Gryffindor Witches: Helga Hufflepuff and Rowena Ravenclaw
Lord Voldemort. Because of the terror he spread in the past, most wizards and witches - with the notable exception of Albus Dumbledore, and Harry Potter - are afraid to pronounce his name.
Witches and wizards that Harry Potter didn't know personally and so remained unnamed.
Wizards, Witches, and you go to school to learn magic.
They are all British and do magic
Not wizards in the sense of Harry Potter novels. But there are Witches and Wizards groups and societies and even call themselves by these names. These ones do not have magic powers.
Please note that Harry Potter is a fictional story. According to this story, wizards and witches (as the female wizards are called in the Harry Potter story) usually inherit their magic from their parents - though in some cases non-magical parents have magical children, and vice versa.
maybe by the Harry Potter movies as they are wizards and witches a normal Halloween costume.