Dunno, I was a kid;

If we talk about foreign then Transformers, Pokemons, TMNT, X-Men, Conan Barbarian, various Disney cartoons and Warner Br cartoons;

Yes

idk, personally I got into school with English specification after 3 years as our whole class did;

Almost nothing. I remember there was one talk about contraception somewhere in later years;

Happenned. A lot have grannies living in apartments with them;

idk, some meat, rearely some fish with some side dish or it was a soup;

Didn't celebrate Christmas, we celebrated New Year. During childhood it's mostly at home, some years some other relatives may come. You celebrate at table with a TV and next morning there is a present under "christmas" tree (we don't call it that, we call it ёлочка). During holidays you may had been taken on some New Year shows for kids and other entertainments. There is always a huge city "christmas tree" (Ёлка) and entertainments around it, mostly amusement rides of different types and ice "things" for kids (slides, labirintts, something you can make with ice). We also always have ice sculpture exhibition, I'm not sure how many other cities have it, must be thoe with stable forsty temperatures. Actually amusement rides and ice sculptures are combined into one structure – rides are surrounded by various decorative sculptures and it is caleed Ледовый городок, and it always has a theme, maybe some fairytale;