How many Purebloods does it take to screw in a lightbulb?

What’s a lightbulb?

How many witches does it take to screw in a lightbulb?

None, the Wizarding World doesn’t use lightbulbs.

How many wizards does it take to screw in a lightbulb?

Two. One to hold the bulb. One to rotate the room.

How many Muggles does it take to screw in a lightbulb?

One. It is the only thing they are good for.

How many aurors does it take to screw in a lightbulb?

The Dark Lord already killed the ones with that kind of know-how.

How many Gryffindors does it take to screw in a lightbulb?

Three and you know who they are.

How many Ravenclaws does it take to screw in a lightbulb?

None. They all starve to death in the dark with books in their hands trying to figure out how.

How many Slytherins does it take to screw in a lightbulb?

One to blackmail a Hufflepuff.