Slightly off topic, but a good pub quiz question...
If 64 teams are involved in a knockout competition, with no replays, how many games are played before some team wins it?
It’s always “number of teams minus 1” to work out number of games in a knockout, because every game knocks out one team except for the final. So for a million teams in a knockout you can immediately say there’ll be 999,999 games, or for 64 there’ll be 63.