Needed to play: standard deck of playing cards, possibly use 2 decks if a lot of people are playing
Players: 3-13
Object of the game: to discard all of the cards in your hand
Some of the most fun games can be played with a standard 52 deck of cards. One such game that can be quite entertaining to play is "I doubt it." The premise is straightforward: to be the first person to get rid of all the cards in your hand.
All cards are dealt out to the players. Play goes clockwise and begins with the person to the dealer's left. The first player must discard Aces. The next player must discard twos, then next is threes and so forth. Once the discard called cards reach Kings, then play starts over with Aces.
Players can lay one to four--even more if two decks are being used- cards in front of them face down. He/She will then announce how many ranked cards they have discarded; for example, he/she may discard three cards so he/she would say, "three aces." Players do not have to tell the truth. Any player that suspects the discarded cards of not being the called rank can challenge it by saying "I doubt it." Then the player must reveal the discarded cards. If the challenger is right then the challenged player must pick up those cards and all other discarded cards to put into his/her hand. If the challenger is wrong then she/he must pick up all the discarded cards and put the cards in his/her hand.
If more than one person challenges a player by saying "I doubt it," then the person who said it first will pick up the discarded cards should they lose the challenge. If it is too close to call, then the person closest to the challenged player picks up the cards. Should they be equal distance from the challenged player, then the challenger to the left shall pick up the discarded cards. Ofcourse, these guidelines are not set in stone so feel free to make your own house rules to handling such a situation.
The first person to get rid of all of their cards is the winner. If you play your last card(s), are challenged, and you lose the challenge, then you must pick up the discarded pile. Play continues as normal after any challenge.
There are several variations of play of "I doubt it" and like minded card games such as "BS" and "Cheat." One version of "I doubt it" has the lead player calling a rank and then everyone must play that rank. Play continues until everyone has passed their turn. At that time a new rank is called by the last person to discard cards.
While "I doubt it" is categorized as a children's game, it's one of those fun card games that is entertaining at any age. Because of its simplicity, "I doubt it" is very easy for parents to teach their young children to play. Best of all, you already have everything needed to play, which consists of a deck of cards.

