ln each of the questions below four statements are given followed by four conclusions numbered I, II, III 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 the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
Statements
Some pins are needles.
Some threads are needles.
All needles are nails.
All nails are hammers.
Conclusions
I. Some pins are hammers.
II. Some threads are nails.
III. Some pins are threads.
IV. No pin is a thread.