In the question below there are four statements followed by three conclusions I, II and
III. You have to take the four given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: Only years is months All weeks are tonight No year is tonight Mostly years is day Conclusions:
I. Some tonight being day is a possibility
II. Some years are not weeks
III. Some days are weeks

No years is tonight (E) → Conversion → No tonight is years (E) + Mostly years is day (I) → Some days are not tonight (O*) → Probable conclusion → Some tonight may be days (I). Hence conclusion I follows. All weeks is tonight (A) + [No years is tonight (E) → Conversion] → No tonight is year (E) → No week is year (E) → Conversion → Some years are not weeks (O). Hence conclusion II follows. Mostly years is day (I) → Conversion → Some days are years (I) + Some years are not weeks (O) → No conclusion. Hence conclusion III does not follow.