$\frac{1}{8}$ th of $\frac{6}{7}$ th of $11200 = ?$

The value of $(1001)^3$ is

The smallest number between $400$ and $500$ which is divisible by $9$ is

The sum of the first $45$ natural numbers is:

If the difference between a number and $\frac{3}{5}$ of the same number is $30$,then find the number.

If the two digits of the age of Mr. Manoj are reversed,then the new age so obtained is the age of his wife. $\frac{1}{11}$ of the sum of their ages is equal to the difference between their ages. If Mr. Manoj is older than his wife,then find the difference between their ages.