One type of Christmas carol brain teaser provides an alternate name for a Christmas carol so the player can guess the song; for example, "Oh Holiday Conifer" is another title for "Oh Christmas Tree." "Happiness to the Global Ecosystem" is another way of saying "Joy to the World." "Deck the Halls" could also be "Festoon the Corridors."
Another Christmas carol brain teaser game involves showing the players a picture that depicts a clue to help them name the carol. A picture of a knight is a clue for "O' Holy Night." An image that has the alphabet with the exception of the letter "L" is a great hint for the song "Noel."