Blackjack or 21 as it is sometimes known is one of the most popularly played games in the casinos. In this game the hand having a total of 21 or closest to 21 wins. If your total exceeds 21 then you’re bust or out of the game. For counting the total of the cards, all cards from 2 to 10 are worth their face value, Jack, Queen, King are all 10 and Ace can be either 11 or 1 depending on what suits the total best.