For the following 8 Questions

In each question below are two/ three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Give answer1) If only conclusion I follows.
2) If only conclusion II follows.
3) If either conclusion I or conclusion II follows.
4) If neither conclusion I nor conclusion II follows.
5) If both conclusion I and conclusion II follow.19-20: Statements:   All buildings are houses. No house is an apartment. All apartments are flats.

21-22: Statements:  Some oceans are seas. All oceans are rivers. No river is a canal.

23-24: Statements: No day is night. All nights are noon.No noon is an evening.

25-26: Statements: Some papers are boards. No board is a card.