In each of the questions below are given four statements followed by four conclusions numbered I, II, Ill and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
Statements
All stones are hammers.
No hammer is a ring.
Some rings are doors.
All doors are windows.
Conclusions
I.Some windows are stones.
II Some windows are rings.
III No window is stone.
IV. Some rings are stones.