There is just one such card in a normal deck of cards.
6
1/52
4
52 + 4 jokers
10
There are four jacks in a deck of 52 cards.
The answer depends on how many cards are drawn.
There are 52 cards in a standard deck of cards, with 26 red cards, and 26 black cards.
20 of them.
59
Assuming you mean how many fours in a deck of playing cards, a standard deck has four. One heart, diamond, spade, clubs/