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

Two balanced dice are rolled simultaneously. Then,the probability that the sum of numbers on the dice is $2$ is ............

At a toy shop,there are $10$ toys in a box of which $3$ toys are defective. $A$ customer would purchase a non-defective toy only. The probability that a toy selected at random from the box is purchased by the customer is ..............

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

$A$ game consists of spinning an arrow which comes to rest pointing at one of the regions ($1, 2$ or $3$). Are the outcomes $1, 2$ and $3$ equally likely to occur? Give reasons.

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