Find the least number which must be added to $15463$ so that the resulting number is exactly divisible by $107$?

$A$ certain two-digit number is three times the sum of its digits. If $45$ is added to the number,the digits are reversed. Find the number.

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

$11 \times 468 \div 26 = ? + 8$

If the sum of two numbers,one of which is $\frac{2}{5}$ times the other,is $50,$ then the numbers are

$92^{2} - 12^{2} = 3535 + ?$