I have read that the normally narrated narration of Imam Hussain and his companions being without water for three days/nights is untrue and there are sources that say that the group even had water to do ghusl the night before Ashura. What view is historically accurate and can you please cite the source?

I have never read anywhere that they had water. All of the reports that I have seen said they died thirsty.

If we do dua for something and it keeps getting delayed whereas all your other duas get accepted, so does that mean we should keep asking Allah dua that is not being accepted or leave it?

Asking Allah for things is in itself a good action. Continue asking Allah, but the reason for delay could be a number of things that are unknown to us.

We have a narration from Imam Sadiq (as) that states “if one were to see the reward in the hereafter for all of the prayers that were not answered in this world he would wish that none of his prayers were ever answered at all!”

Sometimes a request we asked for may not happen and we think it is bad but in reality it might have been good. We may have prayed to get a certain job, but in reality that job might have been bad for you.

It happens sometimes that you want to go somewhere and your tire gets flat. You get mad because you will be late, your tire costs money and takes time. Maybe if you would have not had the flat you could have been in an auto accident but you avoided it.

So, Allah may be protecting us from something unknown to us and we should thank him in all situations.

We should always seek Allahs forgiveness as well. We see that one of the keys to having your dua accepted is true and sincere repentance. We see that we read in Dua Kumayl:

My question is that we as shia read namaz as zohrain and maghribain which is allowed, but on the day of Ashura, Imam Hussain a.s offered zohr and asar prayers separately. So we get more sawab offering them separately? and when we're offering namaz as zohrain or maghribain so what are the times that these namaz get Qaza? if we offer zohrain at the time of asar so the zohar namaz won't be qaza right?

We are permitted to offer zuhr and ‘asr together as well as maghrib and ‘isha prayers together. We are also allowed to perform them separately. Both ways are correct, but it is better to offer them separately which has more rewards according to narrations. The time for zuhr or maghrib becomes qadha is when there remains only sufficient time left to make salat ul ‘asr and salat al ‘isha respectively.

When we hear the masaib of Ashura every year, in there we are told how Imam offered the zohr prayers while his companions shielded him from the arrows. Then when Imam a.s was doing jang then at the time of asar he stopped for namaz which is also when his Shahadat was. I hear this from every moulana who reads the masaib. So wasn't it like this?

Yes.

My question is that we as shia read namaz as zohrain and maghribain which is allowed, but on the day of Ashura, Imam Hussain a.s offered zohr and asar prayers separately. So we get more sawab offering them separately? and when we're offering namaz as zohrain or maghribain so what are the times that these namaz get Qaza? if we offer zohrain at the time of asar so the zohar namaz won't be qaza right?

We are permitted to offer zuhr and ‘asr together as well as maghrib and ‘isha prayers together. We are also allowed to perform them separately. Both ways are correct, but it is better to offer them separately which has more rewards according to narrations. The time for zuhr or maghrib becomes qadha is when there remains only sufficient time left to make salat ul ‘asr and salat al ‘isha respectively.

There is channel that shows live namaz e maghribain from samarra. In there they give a short gap in between maghrib and isha. What is the reason for that?

To allow for time to make the supererogatory (nawafil) prayers And also to say certain recommended dua

Can you please tell me a bit about the rules of reciting ziarat e ashoora? And also, when it says at the end to recite the dua while in sajdah, so if we can't memorize the dua, can we read it just like that?

If you can not remember the part to be said in Sajdah then do the sajdah and then recite it after.

And if we want to do a wazeefa of ziarat e ashoora so what is the correct method for it? Can you explain what the term Wazeefa means? Myself and a few others i asked are not aware of that term

It is recommended to recite Ziyarat Ashura for 40 consecutive nights to get your need solved.

Can you please tell me a bit about the rules of reciting ziarat e ashoora? And also, when it says at the end to recite the dua while in sajdah, so if we can't memorize the dua, can we read it just like that?

If you can not remember the part to be said in Sajdah then do the sajdah and then recite it after.

And if we want to do a wazeefa of ziarat e ashoora so what is the correct method for it? Can you explain what the term Wazeefa means? Myself and a few others i asked are not aware of that term

It is recommended to recite Ziyarat Ashura for 40 consecutive nights to get your need solved.

My question is why can’t women lead namaaz e namaaz with men praying behind them ?

The rulings in regards to salat were given from the prophet and cannot be changed. Never have we seen in the lifetime of the prophet or the imams that they appointed a woman to lead men in salat.

Do we know why that is the case please ? Did the Prophet pbhuh say why ?

We have narrations that its better for the women to pray in their houses rather than in congregation. You also will see that even in the times that salatul jumah and salatul eid was obligatory that it was not obligatory on women to attend.

My question is why can’t women lead namaaz e namaaz with men praying behind them ?

The rulings in regards to salat were given from the prophet and cannot be changed. Never have we seen in the lifetime of the prophet or the imams that they appointed a woman to lead men in salat.

Do we know why that is the case please ? Did the Prophet pbhuh say why ?

We have narrations that its better for the women to pray in their houses rather than in congregation. You also will see that even in the times that salatul jumah and salatul eid was obligatory that it was not obligatory on women to attend.