Quiz: McDonald's trivia quiz - Telegraph The chain is loved and loathed by many, but it has an interesting history and like it or not impacts the world on a daily basis. It is the most popular food or drink brand in Britain with 56 per cent of the population having visited a McDonald's in the past six months. It serves three million customers a week, and last year it sold 91 million Big Macs. As it celebrates a 40 year anniversary in the UK, we take a look at some of the weirder facts about McDonald's.