Some sample questions from this category:
* During the period 1946 to 1990, besides the League Championship and the National Cup, Bulgarian clubs competed for what other trophy?
* Which one of the following Bulgarian players did NOT play in the German Bundesliga?
* What was the final score of the match Bulgaria v Greece, during the 1994 World Cup finals in the USA?
* Who coached Bulgaria at the World Cup in 1998?
* Each of these clubs have won one or more League Championship. Which one is NOT based in Sofia?