Impurity on body, clothes or place of Salaah

Q: Recently I performed two Salaahs at a jamaat khana. However the next day I realised my underwear was soiled. What should I do?

Q: I performed Salaah not knowing that there was mazi on my clothes. It was only a few hours after performing the Salaah that I realized that my clothes has been soiled. Is that Salaah valid or do I have to repeat it?

Q: Could Mufti Saheb please tell me if Salaah should be repeated if one carried a child and afterwards found his clothes to be damp. Thinking the dampness to be sweat he performed Salaah. After that he found that the child's diaper had leaked and it had not been sweat.

Q: I work in a non Muslim country and during lunch time; I go to my car and pray Zuhr prayer by sitting on driver seat without performing ablution (I do tayammum by touching my hands on the steering). Can my prayer be valid? I believe praying prayer like this is better than not praying at all.

Q: I have a question, when you finish praying and in about two hours time you find some little  sperm (which is light like water). Do you have to repeat that prayer?

Q: What is the ruling regarding bleeding piles and salaat. Recently I was on a trip to Cape Town. Before returning, I performed salaat at the musallah at the airport where I was the imam. When I returned home I noticed that there was some blood on my underwear, which was from piles. I am not sure at what point the piles were bleeding. Please advise what action/s need to be taken, if any, regarding my salaat and that of the jamaat.

Q: If a lady experiences heavy white discharge when she was ignorant that she must wash up first and make wadhu again if she goes for Salah, are all her Salah performed in this sort of condition void? If yes, should she make Qaza in light of her assumption? Please clarify all conditions of this case and their respective solutions.

Q: I want to know that is it permissible to offer Salaah wearing clothes on which deodorant or perfume is used?

Q: Can I pray to Allah (in Namaz) with my mini book or paper in my pocket which got napaak with urine or testis, but the books are dry?

Q: A person after having lead salaah smells some urine of a mice on his waistcoat he can't determine the amount what must he do, tell all the musallees to repeat or will it be okay?