A coffee quiz can be a useful way to discover gaps in your knowledge, provided its answers are treated with the right amount of precision. The source mixes naming history with numerical estimates about beans, tree production and worldwide consumption. Those are not all equally fixed kinds of fact.
A question about the name cappuccino concerns language and cultural history. A question about how many beans make an espresso depends on bean size and the dose being used. Likewise, a tree's annual production varies with plant material, conditions and management, so one average should not become a universal rule.
When using coffee trivia, ask what would need to be measured or defined to verify the answer. Weigh a dose instead of counting beans, and attach a date and source to changing industry figures. That turns an entertaining exercise into a practical habit: distinguish a definition from an estimate before repeating it as certain knowledge.
The conversation
A good question can make a better brew.