Can we use a/an + one to show particular situations. I have seen some
context in which it is shown.
(1) A one-eyed boy was carried to hospital for treatment. This way it would make sense, indicating that the boy only has one eye (i.e. he somehow lost the other one/ lost eyesight in the other one).
(2) I have a one five ruppe note (currency) which is torn. This is wrong. It's either "a five rupee note" or "one five rupee note", meaning that you just have one (not two or more) note worth five rupees.
(3) His all round act spur india to a two wicket win over south africa.
Third sentence I got from news paper. "a two wicket" seems difficult
to understand. Generally, Wicket is singular and more than one wicket
is written wickets.
A is used singular countable. here, two shows plural and instead of wickets; mentioned wicket.
Could you inform the rule of a/an + one and of 3rd sentence ?