If two numbers are selected at random from $20$ consecutive integers,what is the probability that their sum is odd?

Three numbers are chosen at random without replacement from the set $A = \{x \in \mathbb{Z} \mid 2 \leq x \leq 11\}$. The probability that the minimum of the chosen numbers is $3$ and the maximum is $7$ is

Three numbers are selected randomly between $1$ to $20$. Then,the probability that they are consecutive numbers will be

If five-digit numbers are formed from the digits $0, 1, 2, 3, 4$ using every digit exactly once,then the probability that a randomly chosen number from those numbers is divisible by $4$ is:

What is the probability that a number formed using all the digits $1, 2, 3, 4, 5$ is divisible by $4$?

$A$ bag contains $9$ identical black balls numbered $1$ to $9$ and $4$ identical white balls numbered $1$ to $4$. If $3$ balls are drawn at a time randomly from that bag, then the probability of getting at least one white ball is