What is the value of $\frac{5.6 \times 0.36 + 0.42 \times 3.2}{0.8 \times 2.1} ?$

On simplification of $\frac{(2.644)^{2}-(2.356)^{2}}{0.288},$ we get

If $x = y = 333$ and $z = 334$,then the value of $x^{3} + y^{3} + z^{3} - 3xyz$ is

How many $\frac{1}{8}$'s are there in $37 \frac{1}{2}$?

$\left\{7 \frac{1}{2} + \frac{1}{2} \div \frac{1}{2} \text{ of } \frac{1}{4} - \frac{2}{5} \times 2 \frac{1}{3} \div 1 \frac{7}{8} \text{ of } \left(1 \frac{2}{5} - 1 \frac{1}{3}\right)\right\} = ?$

$\frac{1.49 \times 14.9 - 0.51 \times 5.1}{14.9 - 5.1}$