As the name implies, the classic Guess Who board game is about guessing (famous) personas. Besides famous people, you can also include locations, scenes, movie characters, motives from history and similar and ask players what they see in the picture. But, if you are using customized Guess Who quizzes for marketing, it would make sense to ask questions and add photos related to your brand or industry. This can be anything related to your company history or some interesting facts about your day-to-day that customers would love to find out.