There are 52 cards in a deck of cards.
Assuming that colour cards refer to what most people would call picture cards, the answer is 16.
Unlike the other number cards, there is only one 'zero' card in each colour in an UNO deck, so there are 4 'zero' cards in total.
In a standard deck the probability is 0. There are not two, but 26 cards of the same colour.
There are 52 cards in a playing deck.
13 diamons are in a deck of cards
In a normal deck there are 39 such cards.
There are four nines in a deck of cards.
In a standard deck of playing cards, there are 26 red cards.
There are two red aces in a deck of cards.
There are four 2s in a deck of cards.
The are 52 cards in a playing deck.