Last one is something you'd see every new years eve. (spoiler here) It uncovers a stupidity of cities in the USSR, when those were identical up to a street name.
My mom and dad would probably come up with a slightly different list of their favorites, nonetheless they would agree these can be called "true" classics.
The important bit to remember here is that all of that production was going through "checks" to make sure there are no anti-communist ideas in the movies. Creators had to either be very careful to disguise some of the sentiment or not to have it.
At the end of the day people were not idiots and understood the role of the government. We all had someone close who was a survivor from gulag or a returning labor camp prisoner or a displaced individual with no right to get back to his village. So our lives were kind of similar to everybody elses in the west, provided you eliminate those awful bits. And maybe because those terrible parts were absent in these movies, we were able to have a good laugh.
Honestly watch those and have a laugh. If it seems not funny then try learning some russian and watch them again :D I know it is a terrible dad joke.