RegentMan said:
I think the Russian doesn't know how to speak German, so he's saying a common German phrase, thinking the prisoner will understand. It's like someone saying "Oui" when asked if one speaks French when one doesn't.
I knew this joke in another version. It was that a Soviet soldier is asking a long line of German captives their names. Of course in Russian. So when a tenth person comes to him and answeres "Was??!" ("what!"), not being able to understand, he gets to thinking it's either a really big German family, or someone's deceiving him. He gets angry and after yet another "was?" punches a German in his stomach. The German cries out in pain: "wahrum!?" ("why?")
"That's better", answeres the Soviet and asks next person.
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I don't know if it was told before, but as old political jokes count, I will post some soviet Radio Erewan one.
A listener calls radio Erewan and asks: Dear Radio, what were the last words of comrade Ordjonikidze before his suicadal death?
Radio Erewan replies: "Comrades! Don't shoot!!!"
A listener calls Radio Erewan and asks: Dear Radio, is it true that in Moscow, on the Red Square, they're giving cars for free?
Radio Erewan replies: Yes, but it's not in Moscow, but in Leningrad. Not Red Square, but Square of Revolution. Not cars, but bikes; and not giving them, but stealing.
A listener calls Radio Erewan: dear Radio, I am your faithful listener from America. What's the most important city in Soviet Union?
Radio Erewan: Erewan, of course.
Listener: and how many nukes do You need to destroy it?
Radio Erewan: thinking about it, Moscow is pretty important city as well...
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Morning news in radio: "today at 5 o'clock am, bloody chineese forces attacked soviet combine harvester working peacefully in the fields.
The harvester, after replying with fire, flew back to Moscow."
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Lenin dies. His closest co-workers wait next to his bed. Lenin's in coma, but from time to time he wakes up and says something.
He says: "Stalin! Are You here?"
Stalin replies: "Yes, Lenin, I'm always next to You".
Lenin comes back to sleep. When he wakes up, he cries out:
"Stalin! You can not be my successor!"
Stalin: "but why?"
Lenin: "the people will not follow you!"
Stalin: "Lets make a deal: those who will follow me, will follow me. And those who won't, will follow You"
I know many more. My english is not perfect, however, and I don't know if they seem funny when translated by me.