Events that have been competed since the first Winter Olympics in 1924:
1) Men's singles figure skating.
2) Women's singles figure skating.
3) Mixed pairs figure skating.
4) Four man bobsleigh.
5) Men's Ice Hockey.
6) Men's 50 km cross country skiing.
7) Nordic combined.
8) Men's normal hill ski jumping.
9) Men's 500 meter speed skating.
10) Men's 1500 meter speed skating.
11) Men's 5000 meter speed skating.
12) Men's 10000 meter speed skating.
Both figure skating and ice hockey were competed before the start of the Winter Olympics in 1924. Ice hockey debuted at the 1920 Summer Games in Antwerp and figure skating debuted at the 1908 Summer Games in London. Once the Winter Olympics were established, both switched from the Summer Games to the Winter Games.
Depends on what the question refers to: The longest "running" event is the Marathon, but the longest event in terms of distance in the athletics is the Mens 50 kilometre walk (but you certainly aren't allowed to run in that). Alternatively there are a whole series of events that have been included in every Olympics, therefore there is no single longest running event in terms of being at every Olympics.
Yes, ice hockey debuted at the 1920 Summer Olympics in Antwerp because, at the time, there were no Winter Olympics. Ice hockey has been a Winter Olympic event since the first Winter Olympics in 1924.
The first Winter Olympics was in 1924.
The Winter Olympics have never been held in Africa.
Archery was a sport at the 2016 summer Olympics. Artistic gymnastics has been a Summer Olympic event since the 1928 Olympics. Alpine skiing is a Winter Olympics sport.
Bobsled, known in the Olympics as 'bobsleigh', has been an Olympic event since the first Winter Games in 1924.
The winter Olympics have never been held in Australia.
Figure skating was an event in the first Winter Olympics in 1924. (Prior to that, it was actually part of the Summer Olympics in 1908 and 1912.)
Ski jumping has been in the Winter Olympics since the first Winter Games in 1924. One event was competed in 1924 on a normal hill. The first ski jumping gold medalist was Jacob Tullin Thams of Norway.
Ski jumping has been a Winter Olympics sport since the first ever Winter Olympics in 1924.
Ski jumping has been an Olympic event since the first Winter Olympics in Chamonix in 1924. The winner of the first Olympic Gold Medal for ski jumping was Jacob Thams of Norway.
USA has been in every Summer Olympics, except the 1980 Games, and every Winter Olympics. That makes USA competing in 25 Summer Olympics and 20 Winter Olympics