What is the ruling of Sharia on bringing children to the Masjid?

If an earthquake-God forbid-took place in a certain area, resulting in a large number of deaths, and there was a dire need for digging mass graves, what is the ruling of Sharia on such graves knowing that people of different faiths are buried together? In addition, what is the ruling on not burying the dead in this case?

What is the ruling of Sharia when the Imam calls to Taraweeh prayer by saying : "Taraweeh may Allah reward you" and what is the ruling on doing Thikr between its Rakhas?

I vowed to Allah that if I receive a certain sum of money I will buy my mother two gold bracelets. However, my mother passed away before I received that sum. Accordingly, do I have to give the bracelets to the heirs or I`m considered free from liability?

I left for Umrah, performed the rites and completed them. After that, I made Ihram (enter into state of ritual consecration) from the mosque of Tan'eim for a second Umrah. While performing Sa'iy, something urgent happened and I didn`t finish this ritual and didn`t make Tahalul. I went to the hotel, took off my Ihram attire, put on my clothes and returned to my country. After that, I was blessed with a baby. What am I liable for?

Is the prayer of the one praying alone or in congregation while having a piece of candy in their mouth considered valid or not?

What is the ruling of Sharia on loudly greeting those already sitting in the mosque? This is taking into consideration that they return the greeting and this could annoy the prayer performers.

Is it permissible to use Zakah money to cover the expenses of maintaining schools, hospitals, and universities?

I work as an Imam and since I have sustained a back injury, I lead the prayer while sitting on a chair and can`t make ruku or sujud. What is the ruling of Sharia on my prayer and that of those praying behind me?

What are the obligatory conditions for halal slaughtering? Is it permissible to shackle the animal from its hind leg before slaughtering, as practiced by modern slaughterhouses, and then slaughter it while its head is down? It is worth pointing that the animals can`t see other animals being slaughtered. 

What is the ruling of Sharia on singling out Jumu`ah with fasting when it falls on the Day of `Arafah?

I have a serious illness (Extreme dizziness) and it is difficult for me to travel or go out. Is it allowed to delegate someone to do Hajj on my behalf?

We are a team that works on a drilling rig in the Dead Sea area. We work different shifts six days a week. Unfortunately, we can`t stop the rig at prayer time and it moves half a circle left and right. It deviates (45) degrees right and left from the direction of the Qibla, so it becomes impossible for us to pray towards the Qibla because the rig keeps rotating. How can we pray while on this rig?

What is the ruling of Sharia on holding more than one congregation concurrently for the same prayer in the same mosque?