Tahaarat

Q: I have a question which always brings doubt to me with regards to ghusal. This happens to me all the time like this morning when I got back home from fajr I went to use the bathroom and on taking out my underpants I found a tiny dot of wetness and small white marks on my underwear. I then urinated and whilst urine emitted I watched to see if anything odd is emitted, I found that a little of white liquid came out as well which was sticky. Is this mani or mazi? I always get confused and then get waswasas. Do I have to make ghusal or do I just put on clean underpants and make wudhu?

Q: If there is napaaki on multiple spots on the wall, can I just use one cloth and wipe them all off the wall generally or would the napaaki spread all over?

Q: If someone forgets to do wudu (as a part of ghusal) while doing ghusal, but immediately after ghusal he realized his mistakes and performed wudu, is his ghusal valid?

Q: I have a question that whenever I am in a state of impurity like after semen ejaculation, can I touch objects like phone books etc? Like they won't become impure because if they become impure just by touching whenever I am in a state of impurity then how can I take a bath? Whenever I want to masturbate, I try to avoid it by doing wudhu, etc, reciting kalima but still I end up doing that. What should I do?

Q: Yesterday my husband sat on a bench at the airport which had crumbs on it. I am not sure what the source of the crumbs are and I am now concerned that everywhere he sat thereafter like the car as well as the bags which came into contact with the parts of his clothes that touched the bench have now become napaak. I did check his clothes for traces of crumbs but it was hard to determine what was crumbs or just fluff and dirt and also what was the source of it as he was wearing the clothes the entire day and could have gotten the crumbs and dirt from various sources. Please let me know if I am required to wash everything that his clothes came into contact with thrice to make it paak?

Q: If someone is in the state of janaabat, but there is no sufficient water for ghusal, although there is water for wudu (ablution), what should he do?

Q: How much amount of wadi (fluid after urination) invalidates ghusal?

Q: After I showered, I was walking out and my soaking hair touched the wall where there was napaaki and then I didn't wash it because I don't know if its napaak, is my hair napaak now?

Q: I read previously that it is permissible to make wudhu with lipstick on. Please confirm.

Q: What is the ruling on the alcohol present in detergents (such as bleach and window/floor cleaners)? Are they permissible to use?