Help me translate a short German joke ~ ~

A black man asked me, "Why, my wife is pregnant with a baby, why don't you put him here?"

A black man came to the police officer and said to him, "Why did my wife give birth to a white child and you are the only white man in this village?"

"Okay, please use snow powder. All the letters were written by Wes, but this letter was written by Schwartz ... "

"Look here, there are a flock of sheep on the grass. Except for the black sheep in the back, others are white sheep. "

"Schon, when you are not here, I am not here!"

"Well, if you don't tell anyone about it, I won't tell anyone!"

Hahaha!