Impurities on clothing and furniture

Q: If one has any najasah on one's clothing and then one immerses oneself in a big pool etc will the clothing become pure if there is no traces left of the impurity?

Q: After intercourse the bed gets wet by semen and wife's fluid. After it dries, is it paak?

Q: I have bleeding gums when I sleep. When I wake up the towel I put on my pillow has some drool on it, sometimes its clear, sometimes orangey yellow. When I spit to check, the colour of the saliva is orangey yellow in colour but not red or pink. Is the towel impure? Also when drool comes out with blood and is red, I do not know if the saliva got on my beard or side of my face when I slept as there are patches on my towel where my mouth was. I have bad waswasas due to this. What do I do?

Q: If wet with water napaak clothes (with a few drops of urine on it and impure water) accidently touch clean wet clothes that have just come out of the machine and are put out to dry, can I wear those clothes or do I have to wash them again?

Q: If you remember making the hand bannister on the stairs napaak about 2 years ago because some urine soaked clothes touched it but you forgot about it and now you just remembered and you've touched it with wet hands since then what should you do?

Q: If you can't remember if you made something napaak what should you do?

Q: I have been reading online but there are different views. Some scholars say that alcohol is haram to consume but it is not impure in literal sense and not impure to touch. Similarly some scholars say it is haram to consume and also impure to touch. If we go to a place that serves alcohol will the table or other places be regarded as impure. Please shed some light.

Q: If during the night while sleeping some how sperm came out. In such a condition what do we have to do? Do we have to change the bed sheet or just clean that place with water?

Q: How can I make make impure (najis) books pure (taahir) as they got touched by urine? Will this answer be appropriate for semen, blood, stool?

Q: If a small amount of najaasat eg. blood the size of a fingernail falls on the garment, then does the garment need to be changed or can you make it paak by washing it 3 times?