What least number must be added to $1056$ so that the sum is completely divisible by $23$?

The sum of four numbers is $64.$ If you add $3$ to the first number,$3$ is subtracted from the second number,the third is multiplied by $3,$ and the fourth is divided by $3,$ then all the results are equal. What is the difference between the largest and the smallest of the original numbers?

Which one of the following is the least number of four digits divisible by $71$?

The least positive integer that should be subtracted from $3011 \times 3012$ so that the difference is a perfect square,is

The least number of five digits exactly divisible by $88$ is

In a college,$\frac{1}{5}$ of the girls and $\frac{1}{8}$ of the boys took part in a social camp. The fraction of the total students in the college who took part in the camp is: