Which of these will make a magnet weak?

The picture shows a magnetic compass and the Sun to its east. The four arrows point towards different directions.

Which arrow is pointing towards the south?

Observe the given figure and identify the correct statements.

(I)  Poles $1,3$ and $5$ are unlike poles.
(ii)  Poles $2,4$ and $6$ are like poles.
(iii)  Pole $1$ will attract pole $3$ and $5$.
(iv)  Pole $4$ will be attracted by pole $1$.

When Asha suspended four bars of different materials from a pole and brought the North pole of a bar magnet near part $P$ and $Q$ of each bar one by one as shown in the figure, the observations she recorded are as follows: 

Which of the following sets correctly represents metal bars $\mathrm{I},\mathrm{}\mathrm{I}\mathrm{I},\mathrm{}\mathrm{I}\mathrm{I}\mathrm{I}$ and $\mathrm{I}\mathrm{V}$?