Two statements. are given followed by four conclusions I, II, III and IV. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions if any, follow from the given statements.
Statements
Blue is black and some black is red.
All red is green but not yellow.
Conclusions
I. Some blue is green.
II. No black is yellow.
III. Some black is not yellow.
IV. No black is green.