"Guess Who?" is a two-player character guessing game created by Ora and Theo Coster, also known as Theora Design, that was first manufactured by Milton Bradley, in 1979, and is now owned by Hasbro. It was first brought to the UK by Jack Barr Sr in 1982. The classic edition is currently being produced by Winning Moves.

Each player starts the game with a board that includes cartoon image of 24 people and their first name with all the images standing up. Each player selects a card of their choice from a separate pile of cards containing the same 24 images. The object of the game is to be the first to determine which card one's opponent has selected. Players alternate asking various yes or no questions to eliminate candidates, such as "Does your person wear glasses?" The player will then eliminate candidates (based on the opponent's response) by flipping those images down until all but one is left. Well-crafted questions allow players to eliminate one or more possible cards. Questions might include:

"Does your person wear a hat?"

"Does your person wear glasses?"

"Does your person have a big nose?"

More Info: en.wikipedia.org