The last digit of $2^5 \cdot 5^5$ is . . . . . . .

The zero of the polynomial $p(x) = \sqrt{5}x - 5$ is . . . . . . .

$\pi$ is a type of number known as:

Find the $HCF$ and $LCM$ of the following pair of integers $510$ and $92$ and verify that $HCF \times LCM = \text{product of the two numbers}$.

If $\text{HCF}(65, 117) = 65m - 117$,then find the value of $m$.

What type of decimal expansion is $0.9999...$? (Terminating,Non-terminating repeating,Non-terminating non-repeating)