An oldie but a goodie!
For this game, you need three headbands or head pieces onto which you slot or stick a piece of paper or card. The person wearing the headband should not be able to see what's written on the card.
Make sure you have 10-15 cards, and write the name of a celebrity in big letters on each card.
Then choose three volunteers to sit in front of the group. Put a head piece on each volunteer. Be careful not to let them see the name of the person on their head piece. It's then their job to guess which name is on their head, but the catch is the answer can only be yes or no. For example, "Am I a male"? "Am I on TV" etc.
Each person can ask as many questions as they want until they get a "No" answer, then it goes to the next person and so-on until eventually someone guesses and they are declared the winner!
This works well if you throw in a 'local' celebrity (such as the Youth Pastor, etc)