Three statements are given below followed by three conclusions numbered I, II and III. You have to take the given statements to be true even if they seem to be at variance from the commonly known facts and decide which of the given conclusions logically follows from the given
statements.
Statements: All dolls are windows. All bottles are windows. All cars are bottles.
Conclusions:
I. All cars are windows
II. Some cars are dolls.
III. Some windows are cars.

Conclusion I. All cars have windows

From “All cars are bottles” and “All bottles are windows”, we can chain the relations: every car is a bottle and every bottle is a window, so every car is a window. That makes Conclusion I true.

Conclusion II. Some cars are dolls.

Since every car is a window, there certainly exist windows that are cars (the cars themselves). Hence, Conclusion III (“Some windows are cars”) is also true.

Conclusion III: Some windows are cars.

There is nothing that links dolls with cars, i.e. both dolls and cars are subsets of windows, but they need not overlap. So Conclusion II (“Some cars are dolls”) does not follow.