4 aces and 4 kings
There is one of each card in a standard 52-card deck.
There are four kings in a standard deck of cards - Spades, Hearts, Clubs and Diamonds. There are also four kings in a standard Tarot deck - Cups/Chalices, Swords, Wands/Staves and Pentacles/Coins.
There are fifty-two cards in a deck of playing cards (excluding the two jokers).
The answer depends on how many cards are picked. If it is only one random card, then the answer is 1/13.
Just one. After that you no longer have a card deck.
There are 4 of each card in every suit and usually 2 jokers.
There is one King of Hearts in every deck of 52 cards. Your answer depends on how many card decks you count.
52
The answer will depend onthe deck of cards that you draw from: a pinochle deck, a deck with jokers, etc;how many cards are drawn,if more than one card is drawn, whether or not a drawn card is replaced before the next one is drawn.
2 red fours in a 52 card deck.
There is one Jack of Spades in a 52-card deck.
There is one King of Diamonds in a deck of cards, unless it is a "specialty" deck.