Multiple realities
(covers information from several alternate timelines)
A guessing game was a type of game in which the player tried to deduce an unknown fact by asking questions.
Both Gary Mitchell and Elizabeth Dehner showed a childhood skill at guessing games, which hinted at their esper abilities. (TOS: "Where No Man Has Gone Before")
In 2370, in an alternate timeline, a young Kes asked her father Benaren who he was and where she was. He told her that they didn't have time to play their guessing game, unaware that due to a unique phenomenon, Kes was living backwards in time. (VOY: "Before and After")
Species, Starship, or Anomaly? was one kind of guessing game. (VOY: "Riddles")
Guess What I'm Thinking? was another. (LD: "A Mathematically Perfect Redemption")