In 1977 I sailed a sailboat back from England. We stopped in Lisbon about Christmas time and had a big party on a British boat tied up near us. We had people from quite a few countries on board to include a bunch of Poles. We sang Christmas Carols in different languages that night. About 3 in the morning one of the Poles asked the question, “How many Russians does it take to change a light bulb”. Things sort of went down hill from that point.
How many does it take ;)
On a visit to the Soviet Union in the early 1970's, a professor of mine went into his hotel room and saw several technicians installing what he figured was sophisticated eavesdropping equipment. The technicians explained to him that they were fixing the light, and the professor replied, "konechno" (of course).