An unbiased coin is tossed thrice. Find the probability of the following event:
$B:$ at least $2$ heads are received.

$A$ die is numbered in such a way that its faces show the numbers $1, 2, 2, 3, 3, 6$. It is thrown two times and the total score in two throws is noted. Complete the following table which gives a few values of the total score on the two throws:

+	$1$	$2$	$2$	$3$	$3$	$6$
$1$	$2$	$3$	$3$	$4$	$4$	$7$
$2$	$3$	$4$	$4$	$5$	$5$	$8$
$2$	$3$	$4$	$4$	$5$	$5$	$8$
$3$	$4$	$5$	$5$	$6$	$6$	$9$
$3$	$4$	$5$	$5$	$6$	$6$	$9$
$6$	$7$	$8$	$8$	$9$	$9$	$12$

What is the probability that the total score is
$(i)$ even?
$(ii)$ $6?$
$(iii)$ at least $6?$

Chits numbered from $1$ to $120$ are put in a box and a chit is drawn randomly from the box. The probability that the chit drawn bears a $3$-digit number is ............

If you toss a coin $6$ times and it comes down heads on each occasion,can you say that the probability of getting a head is $1$? Give reasons.

One card is drawn from a well-shuffled deck of $52$ cards. Find the probability of getting:
$(i)$ a king of red colour
$(ii)$ a face card
$(iii)$ a red face card
$(iv)$ the jack of hearts
$(v)$ a spade
$(vi)$ the queen of diamonds

The probability of a non-leap year having $53$ Fridays is $\ldots \ldots \ldots$