The least prime number is

The sum of the digits of a two-digit number is $8$. If the digits are reversed,the number is increased by $54$. Find the number.

The sum of nine consecutive odd numbers of Set $A$ is $621$. What is the sum of a different set of six consecutive even numbers whose lowest number is $15$ more than the lowest number of Set $A$?

$(\sqrt[3]{8000} + \sqrt[3]{0.027} - \sqrt[3]{0.216})$ is equal to:

What is the least number that must be added to $4042$ to make it a perfect square?

How many $3$-digit numbers are completely divisible by $6$?