If $P(A) - P(\bar{A}) = 0.5,$ then $P(A) =$ .........

If $P(A) : P(\bar{A}) = 5 : 3$,then $P(\bar{A}) = $ ........

There are $5$ white,$7$ red,$4$ black and $2$ blue identical balls in a box. One ball is selected at random from the box. Find the probability that the ball is not blue.

Two dice are thrown at the same time. Find the probability of getting:
$(i)$ same number on both dice.
$(ii)$ different numbers on both dice.

$A$ card is drawn at random from a well-shuffled pack of $52$ cards. The probability that the card drawn is not of Diamonds is ..............

If $P(A) : P(\overline{A}) = 4 : 1$,then $P(\overline{A}) = \ldots$