How many times Olympic Flame went out?
So far the Olympic Flame went out 5 times. In 1976 in Montreal the fire went out due to intensive rain. In Athens in 2004 the flame went down on the historical stadium of 1896. During Beijing Games of 2008 it was gone due to "technical issues". During the relay to London in 2012 the flame got extinguished on a boat. On the relay to Sochi in 2013 fire went out at Red Square of Moscow.
Answers by country
Does the candle burn more or less violently in zero gravity?
about the same
How does the candle flame look like in zero gravity?
it is the same as on Earth surface
it is spherical
it is not formed at all