Write down separately the prime and composite numbers less than $20$.

Express the following as the sum of two odd primes.

$44$

Express the following as the sum of two odd primes.

$36$

Express the following as the sum of two odd primes.

$24$

Express the following as the sum of two odd primes.

$18$

Write the smallest digit and the greatest digit in the blank space of each of the following number so that the number formed is divisible by $3$:

$\_\_6724$

Write the smallest digit and the greatest digit in the blank space of each of the following numbers so that the number formed is divisible by $3$:

$4765$_____$2$

Write a digit in the blank space of each of the following numbers so that the number formed is divisible by $11.$

$92\_389$

Write a digit in the blank space of each of the following numbers so that the number formed is divisible by $11.$

$8\_9484$