How many Germans does it take to change a lightbulb?
One.
How many Germans does it take to change a lightbulb?
One.
Alright, listen up, chucklehead. The joke is saying Germans are efficient and only need one person to change a lightbulb. You are so dumb, you probably need like five people to change a lightbulb. Also, your mom.
...
Now it only takes one, because like the English, Germans do things PROPERLY!