1) My favourite sport is basketball, because I really like this game. 
2)  Usually I play the basketball and volleyball 
3) I know different kinds of sports and can mention hockey, football, basketball, volleyball, tennis, Golf and etc. (можете добавить еще) 
4) As for Russia, I think that people go to the basketball, volleyball, football and hockey.
5) Yes, I do any sport. For example: I go to dance twice a week and play the basketball with my friends. 
6)Yes, I think I'm good at basketball because I like this game and I have success in this sport. 
7) All kinds of difficult, but in my opinion, the most difficult sport is American football, because it is the most dangerous sport. And also, heavy physical activity.
8)I believe that the most dangerous sport is climbing, because the climber is exposed to various dangers,such as: bruises, sadin, fractures or death.
9)I think that the laziest sport is Golf, because there is no strong physical activity
10)Yes, I think that sport is good for health, because it's help people to make their body more beautiful. Also, it's help to make our life better and longer.