On slips of paper, or 3×5 cards write the name of some famous person, or character.
Tape the name on each group member’s back (make sure they don’t see the name).
When everyone has a name taped on their back, instruct them to discover what name is written on their back by asking others yes or no questions about the person.
For example: Am I a real person? Am I an adult? Am I male? Was I born in the United Kingdom? By narrowing the answers down, they may discover “who they are” and if they are correct, you may choose to give them a token prize.
To mix things up you can choose a theme or even make it a what am i.