Select Only the Fifth Element
Select All But The First Five
If there were more than 10 elements here, it would select all of them beyond 5.
Select Only The First Five
Select Every Fourth, Starting At The First
Select Only Odd or Even
Select The Last Element
Selects the 10th because we have 10 elements here, but if there was 8 it would select the 8th, or if there were 1,290 it would select the 1,290th.
Select the Second to Last Element
Selects the 9th because we have 10 elements here, but if there were 30 elements it would select the 29th.