Dear Ali Sikandar

Thanks for participating in the discussion.

1. You have pointed out that the largest spiral galaxy would have been the rightly asked one?

First of all, since the question was about largest galaxy, the whole context is changed. Moreover, had the question been, as you mentioned, the correct choice would be andromeda

So In current scenario, none of the option is right, because largest galaxies are of elliptical type not spiral ones.

As far common sense is concerned, the burden of common sense is heavier on the shoulders of examiner rather than a candidate. It is totally unacceptable to set such flawed questions and demand common sense from a candidate. My common says, this question is wrong in first place. Every one is supposed to correct their own mistakes, a candidate must not been responsible for making up of an examiners mistake.

2. Nanga parbat as you mentioned was 22nd June, if examiner may be relaxed for 23rd June as being nearest, a candidate may also be relaxed for choosing 24th June. An examiner can refer to books, internet and discussions etc before setting up an exam. However no such facility is available in examination hall.
If an examiner can make such mistake, candidates may also be given open book tests and even then may be forgiven such mistakes as per your relaxation given to the examiner.

3. Hindenburg was new jersy not new York, crash site was in new jersy not new York, both separate states, how on earth can you relax an examiner from such a clear cut mistake.
I cant understand this in between logic of yours. You just need to look whose territory it was.