If the name is slightly different, you might be thinking of: Le Tour de la Question
First, I need to verify if Tournike is an actual existing show. A quick search in my data shows that there's a French reality show called "Tournike," which is the French version of "The Apprentice." The host is Jean-Pierre Pernaut, and it involves a business competition with participants. However, some sources also mention a different concept where Tournike is a reality show featuring contestants trying to escape from a luxury location by performing tasks to earn keys. french tv reality show tournike episode 3 30 new