Seek translation. Jokes about farmers and aliens. English version. It is better to translate correctly,

One day, a farmer met an alien when he was out. The alien extended three fingers to the farmer, and then the farmer gave him five fingers as an answer. When the alien made a gesture of the number 8, the farmer gave the alien his thumb to show his appreciation.

When the farmer came home, he told his wife that he had met a very clever alien. He knew that three plus five equals eight. The alien told his wife in horror that he met a cruel Terran. He said he could kill five Terrans every day, while the alien said he could kill three. The alien said he shot them, but the Terran said he killed the human with his thumb.