There are two children in a family. The probability that both of them are boys is

When two dice are thrown,what is the probability that the sum of the numbers appearing on them is an even number?

$A$ card is drawn randomly from a pack of playing cards. The probability that it is neither an ace nor a king is:

$A$ bag $X$ contains $2$ white and $3$ black balls and another bag $Y$ contains $4$ white and $2$ black balls. One bag is selected at random and a ball is drawn from it. Then the probability for the ball chosen to be white is

Five-digit numbers are formed using the digits $1, 2, 3, 4, 5, 6$,and $8$. What is the probability that they have even digits at both the ends?

The word '$UNIVERSITY$' is arranged randomly. Then the probability that both '$I$'s do not come together is: