Total number of outcomes in the experiment of rolling two balanced dice once is ..........

Two balanced dice are rolled simultaneously. Then,the probability that the sum of numbers on the dice is $4$ is .........

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 selected ball is either red or black. (in $/18$)

$A$ card is drawn at random from a well-shuffled pack of $52$ cards. The probability of that card being a card of a black suit is .............

The probability of getting a bad egg in a lot of $400$ eggs is $0.035$. The number of bad eggs in the lot is:

$A$ balanced die is rolled twice. Then,the probability of the event that an even number is received both the times is ..........