If the letters of the word 'ELEPHANTS' are arranged in English alphabetical order, which letter will be exactly at the centre?
(Note : If a letter appears more than once, include it as many times as it occurs.)

The word 'ELEPHANTS' contains $9$ letters: E, L, E, P, H, A, N, T, S.
Arranging them in alphabetical order gives:
A, E, E, H, L, N, P, S, T

Since there are $9$ letters, the middle position is the $5^{\text{th}}$ letter:

$$\text{Middle Position}=\frac{9+1}{2}=5^{\text{th}}\text{ position}$$

The $5^{\text{th}}$ letter in the sorted sequence is 'L'.