Lets say I have a game that is some kind of a quiz, and its questions are themed around gaming.
For it to be interesting, I would need to make references to well-known games and game-related stuff.
In a copyright infrigement sense, could I have problems with this? Imagine a question such as, "What was the currency used in game X?", or "Which company made game Y?".
Also, the same applied to screenshots of known games, and have a question near it, such as "What game is this image from?".