Impurities on clothing and furniture

Q: I wanted to find out if precum is napaak? Do I have to change my underwear everytime I get precum?

Q: When I went to the bathroom I felt a splash of water or urine on my hand, I don't remember now. I didn't see it that time. I thought I will wash there but when I stood up, my sleeves fell down and I don't know where it was. 

My question is, is my sleeve napaak in both cases if it was impure water or if it was urine or if I don't remember what it was?

Q: At times when I take out a garment to wear from the cupboard, I notice some substance of najaasat on it (not just the trace), what is the condition of the other garments washed together in the washing machine. Many a times I don't even know which were the other garments as it was only noticed after a few days. And if I know which were the other garments, then in this case also,what will be the ruling?

Q: If a dog touches my cloth what is the procedure for cleaning that cloth?

Q: While watching romantic scenes of movies some fluids comes out from my private part and I think it gets transferred to my clothes and bed sheets also. How should I wash these clothes to make it paak? If I cannot trace where in the bedsheet the fluid got transferred then what should I do? Do I have to wash the whole bed sheet or should I leave it? If the fluid gets dried and after sometime I sit on the bed sheet with my wet clothes, will my clothes get napaak?

Q: I have bird pet at home, it is a parakeet. When I leave him out of his cage, he makes droppings on my clothes. Are the droppings of a parakeet tahir and can one make salaah with it?

Q: 

1. My question is that after intercourse I wipe myself. If some sperm gets on my hand I wipe it with a tissue then put my qamees on. Is my qamees paak or do I have to wash my hands before touching anything.
2. If something is najis. Do you have to wash it 3 times and squeeze each time or until there is no sign of najasaat?

Q: If a person touches something napak, then his hands become napak. Now this person forgets and touches his phone, does his phone become napak?

Q: Do all my clothes become napaak through ihtilaam? After ihtilaam if I don't make ghusal and just change my clothes, do these clothes become napaak as well?

Q: I would like to know how do I make items that have become napaak with vomit or urine paak (such as tiled floors, couches, tables and chairs). Can I wipe them with a cloth 3 times, rinsing the cloth each time?