If $P(A) : P(\bar{A}) = 3 : 2$,then $P(A) = \dots$

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

$A$ triangular target with sides measuring $5 \, cm, 12 \, cm$,and $13 \, cm$ is drawn on a square board with side $20 \, cm$. Find the probability that a dart hitting the board hits the target.

The king,queen,and jack of clubs are removed from a deck of $52$ playing cards and then well shuffled. Now,one card is drawn at random from the remaining cards. Determine the probability that the card is:
$(i)$ a heart
$(ii)$ a king

Two balanced dice are rolled simultaneously. The probability that the product of numbers on two dice is even is ......

If $P(\overline{B}) = 0.81$,then $P(B) = \ldots$