How many numbers up to $500$ are divisible by $23$?

Two numbers,when divided by a certain divisor,leave remainders $43$ and $37$ respectively. When their sum is divided by the same divisor,the remainder is $13$. Find the divisor.

$(\sqrt{9})^{3} \times (\sqrt{81})^{5} \div 27^{2} = 3^{?}$

$323.232 + 32.3232 + 3.23232 = ?$

How many numbers are there between $1$ and $200$ which are divisible by $3$ but not by $7$?

Find the least values of $x$ and $y$ so that the number $5x423y$ is divisible by $88$.