Total number of outcomes in the experiment of tossing an unbiased coin twice is ..........

$A$ balanced die is thrown. Find the probability that the number on the die is a multiple of $3$.

Two balanced dice are rolled. Find the probability that the sum of numbers on two dice is greater than $8$. (in $/18$)

$A$ balanced die is rolled twice. Then,the probability of the event that the sum of the numbers received in two trials is more than $10$ is ...........

The probability of getting the number $7$ while throwing a balanced die once is ...........

If $P(\bar{B}) = 0.55$,then $P(B) = $ ...........