There are $5$ red,$3$ white and $2$ yellow roses in a vase. One rose is selected at random from the vase. Then,the probability that the selected rose is yellow is ..........

Two balanced dice are rolled simultaneously. Then,the probability that the sum of numbers on the dice is $11$ is .........

At a fete, cards bearing numbers $1$ to $1000$, one number on one card, are put in a box. Each player selects one card at random and that card is not replaced. If the selected card has a perfect square greater than $500$, the player wins a prize. What is the probability that:
$(i)$ the first player wins a prize?
$(ii)$ the second player wins a prize, if the first has won?

Two unbiased dice are thrown once. Write all the possible outcomes of this experiment. What is the probability that the sum of the numbers on the two dice is a multiple of $3$ and $4$?

The probability of the month of April of a leap year having $5$ Fridays is $\ldots \ldots \ldots$

Find the probability of getting number $2$ on a die when a fair die is thrown.