$(\sim (\sim p)) \wedge q$ is equal to .........

Which of the following sentences are statements? Give reasons for your answer.
All real numbers are complex numbers.

The contrapositive of the statement "$I$ go to school if it does not rain" is

Which of the following statement$(s)$ is/are not true?
$I$) If $1$ is not a prime number, then $2$ is not a prime number.
$II$) $e$ is a vowel and $12 \times 3 = 36$.
$III$) It is not true that $14$ is a composite number and $3$ is an even number.
$IV$) $\sqrt{5}$ is an irrational number, but $3 + \sqrt{5}$ is a complex number.

Write the negation of the following statement and check whether the resulting statement is true:
Australia is a continent.

The negation of the statement "If a number is divisible by $15$,then it is divisible by $5$ and $3$" is: