Jamaat Salaah and Imaamat

Q: One day I was leading three people in zuhr prayer. In my second last rakaat I felt like something was coming out from my private part. I still continued with the prayer. After I finished I went to the toilet and I found it was mazi. I came back after I washed myself and made wudhu but the people we prayed together with were gone. I don't know where to find them because it was a market where we prayed. I don't know them at all. I then observed the prayer alone again. So what should I do about them?

Q: What is the ruling regarding praying behind an Imam considering the Imaam shaves his beard and his pants are below his ankles? What should we do in this condition?

Q: In the Holy Mosques of Makkah and Madinah, outside the mosques, there are big verandas (open space). It is seen that the people walk in these verandas with their footwear on.

1. Can we pray on the floor without a prayer mat?

2. Will our salah be valid? 

Q: Many women join the men in jamaat salaah in the areas outside Musjid al Haraam in such a way that they stand adjacent to the men. Is the salaah of the men and women valid?

Q: Nowadays, some people are performing salaah in the hotel near the Musjid al Haraam while following the jamaat of Musjid al Haraam. The hotel has speakers installed and the recitation of the Imaam of Musjid al Haraam can easily be heard. However, since the Imaam is not present infront of the muqtadis, I am doubting whether the salaah is valid or not. Is it permissible for people to follow the Imaam in salaah while in their hotel rooms? Similarly, is it permissible to follow the Imaam in the hotel jamaat khaana? 

Q: Can you appoint a person who has the latest style short cut beard much shorter than a fist length to make jumah. 

Q: Can the Imaam make a juma khutbah and perform the salaah with his scarf covering his face so much so that only his nose is exposed. When he goes into ruku the scarf hangs down both sides onto the ground. 

Q: If I prayed along with the imam and when he got up from ruku I got up along with him, I did not wait till he got up fully. Is my prayer valid? 

Q: I have a question regarding joining the jamaat for salah late. What is the ruling regarding the situation if I join the jamaat while it was in qiyam. And soon after my joing the jamaat (after 2-3 secs) the Imam goes into ruku. I didn't get enough time to recite surah fatiha. Will I get that rakat as I couldn't recite the Fatiha or I need to repeat it by myself after tasleem of Imam?

Q: One day I was leading three people in asr prayer. In my second last rakaat I felt like something was coming from my private part. I continued with the prayer. After I finished I went to the toilet and I found it was mazi. I came back after I purified myself and I did my ablution but the people we prayed together were gone. I performed the prayer alone again. So what can I do about them?