Seyed Ali Shobayri

Bismillah, 

Asalamu Alaykom, 

Firstly I pray that you may come out of the current situation you are in and that you may be blessed with the best of houses.
 

The example you have mentioned would not permit one to shorten their Salahs and doing so would make your Salah incomplete. You should try your best to make sure that you are praying each Salah in full unless you are able to shorten with the correct conditions.
 

These salahs would not be valid as they are incomplete. in terms of combining if you mean praying Asr after zuhr, and isha after Maghreb, then this is always valid regardless of where one is. 
 

May Allah grant you success  

Bismillah, 

Asalamu Alaykom, 

What you heard is completely false. The Prophet Mohammad (sawa) is the greatest of all creation and if anyone puts someone above his status, they are out of Islam. Such a belief would also contradict the ahadith of the shia which clearly state not to put anyone above Rasullah (sawa) 

May Allah swt grant you success 

Bismillah, 

Asalamualaykom, 

Wearing a tasbih around your neck is permissible 

May Allah grant you success 

Bismillah, 

Asalamu Alaykom, 

There is no problem to pray in such a room.
 

May Allah grant you success 

Bismillah, 

Asalamu Alaykom, 

The majority of Shia jurists do not permit eating crab 

May Allah grant you success 

Bismillah, 

If one knows that a product is fried with non-halal meat, then it would become najis (impure) and haram to eat. If one didn't know then there is no sin upon them. 
 

May Allah grant you success 

Bismillah, 

Asalamu Alaykom, 

Delaying Salah (unless delaying it would cause it to become qada) isn't haram. Yes, it is highly recommend for one to pray on time and this would gain them the maximum reward. One should think of it in the way that each minute that goes by where Salah is delayed, is one's reward decreasing. 
 

May Allah make us among those who are able to regularly pray our Salah on time

Bismillah 

Asalamu Alaykom, 

A good dua to recite in the last sajda is the following: 

اللهم اني اسألك الراحة عند الموت والمغفرة بعد الموت والعفو عند الحساب يا كريم يا وهاب

O Allah verily I ask for ease during death, and forgiveness after death and pardon during the judgement, O giving one, O the giving one. 

May Allah grant you success 

Bismallah, 

Asalamu Alaykom, 

The following answer may help you: 

https://www.al-islam.org/ask/is-it-sinful-for-a-girl-to-marry-without-the-permission-of-her-parents 

May Allah grant you sucrsss

Bismillah, 

Asalamu Alaykom, 

Yes inshallah one can get a reward for it however it is recommended to try and learn to recite the duas in the original Arabic. This is so that one may read the dua in it's full eloquence and feel it's true power. If one cannot, the translation is fine. 
 

May Allah grant you success 

Bismillah, 

Asalamu Alaykom, 

it is not just permissible but can also become obligatory for one to do this in order for people to know the truth and be guided.
 

Fatima Al-Zahra (sa) in her Fadak sermon instructs is to fight the heads of kufr (such as the khulafah who usurped the position of Imam Ali). This 'fight' can be an intellectual type of war or fight to establish truth, 

Yes, if one isn't in a state of taqiya or danger then they may expose these figures in an academic manner by using the sources of the opposing sect. One doesn't need to insult for them to be able to achieve this although some may become naturally offended by hearing mere criticism towards figures they regard in high esteem. 

May Allah grant you success 

Bismillah,

Asalamu Alaykom, 

This wouldn't invalidate wudu or salah 

May Allah grant you success