Once
The 2014 Winter Olympics in Sochi, was the first time Russia hosted the Winter Games. The Soviet Union hosted the 1980 Summer Olympics, which was held in Moscow.
Slovakia has never hosted the Winter Olympics.
No country has ever hosted the Winter Olympics three times in a row.
4 times.
Once in 1980.
Twice
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The United States has hosted 8 Olympic Games:1904 Summer Olympics - St. Louis1932 Winter Olympics - Lake Placid1932 Summer Olympics - Los Angeles1960 Winter Olympics - Squaw Valley1980 Winter Olympics - Lake Placid1984 Summer Olympics - Los Angeles1996 Summer Olympics - Atlanta2002 Winter Olympics - Salt Lake CityAs of the 2008 Games, the Olympics have been hosted 8 times by 6 US cities:1) St. Louis - 1904 Summer Games2) Los Angeles - 1932 and 1984 Summer Games3) Lake Placid - 1932 and 1980 Winter Games4) Squaw Valley - 1960 Winter Games5) Atlanta - 1996 Summer Games6) Salt Lake City - 2002 Winter GamesAs of the 2008 Games in Beijing, the United States has hosted 8 Olympic Games: Summer - 1904 - St. Louis 1932 - Los Angeles1984 - Los Angeles1996 - AtlantaWinter - 1932 - Lake Placid1960 - Squaw Valley1980 - Lake Placid2002 - Salt Lake City
8 times 4 winter and 4 summer.
3 times (Chamonix, Grenoble, and Albertville)
4 times
Yes. The winter games have been held twice in Innsbruck (1964 and 1976)
The United States has held the Winter Olympics 4 times, more than any other country. In second is France, which has hosted 3 times.