There are $5$ red,$8$ white,and $4$ green balls in a box. If one ball is drawn at random from the box,find the probability that the ball drawn is white.

At a fete, cards bearing numbers $1$ to $1000$, one number on one card, are put in a box. Each player selects one card at random and that card is not replaced. If the selected card has a perfect square greater than $500$, the player wins a prize. What is the probability that:
$(i)$ the first player wins a prize?
$(ii)$ the second player wins a prize, if the first has won?

There are $6$ green,$5$ red,and $4$ blue identical balls in a bag. One ball is drawn at random from the bag. The probability that the ball drawn is not red is ...........

The probability of the Sun setting in the west is $\ldots \ldots \ldots$

In a packet containing $400$ screws,$120$ screws are defective. $A$ screw is picked up randomly from the packet. Then,the probability that the screw picked up is non-defective is .........

$A$ balanced die is rolled. The probability of receiving a number smaller than $3$ is ..... .