Impurities

Q: If a dog licks my shoes, is it necessary for me to purify them the same way I have to purify my clothes when there’s an impurity of them?

Q: I am having trouble learning how to purify a carpet. I honestly feel like I have transferred filth in so many places, it must be likely that my salah are not counting. What is the difference between a thick and thin carpet?

I put water three times on impure cat vomit while drying (not completely) with towels in between. But the carpet is thin enough that some water gets to the bottom if I saturate it with enough water. Did I do this incorrectly and now filth is transferred everywhere since later on peoples feet touched that wet area?

Q: Can the dried urine of a 7 month old child on a bed make the parents clothes 'napak'?

Q: If I was in the bathroom and mistakenly I stepped on my pants I was wearing, do my pants become napaak? Do I have to change my pants?

Q: If I see white discharge the amount of 1 dirham after performing salah, should I repeat my salaah?

What should be considered as najasat, only the white discharge or both white discharge and the wet part around it?

Q: Two days ago, there was dog sniffing the pathway for a long time. I saw a small handful puddle of wetness. So on that area I pushed the pram back and front again twice. After couple of days, my son used to play with the pram tyre by rolling it on his hand. He did that with wet hands and touched utensils with wet hands to eat and below where I have later placed utensils on top when wet. Now I know if a dog licked it we have to wash the earth 7 times. Now because of the saliva that has spread on my house must I wash each utensil that have been touched by him. 

Q: When my semen discharged from the place and some of it fell on my room mat but instantly I cleared the dirty place with a cloth. Now I'm confused, shoud I wash that particular place which got affected by my discharge or shoud I wash the whole mat?

Q:

1. I was in my mother's house and my son urinated on my mom. My mum dried the urine with a tissue and mopped the area once. Then she washed my son just by wiping him with wet hands. I feel that he has not been cleansed properly. I brought him to my house immediately because wherever he touches with wet hands will become naajis since I still didn't wash him properly. The areas that he touched with his hands became naajis, so do I have to wipe that area that he touched also?

2. There are soiled urine clothes. Previously I used to wash them in a bucket 3 times but I don't squeeze the water out. Must I wash the clothes and clothes dryer rack again or will just wiping the clothes dryer rack suffice? 

Q: On my house carpet, sperm and urine has been on the carpet, however it has dried up and there's no trace left. Does the impurity from this area of the carpet transfer to people who step on the carpet? If not, what if someone with wet feet steps on the area. Also, does impurity transfer when it is wet or damp?

Q: Will a floor become pure (taahir) by mopping it three times for urine? As we stepped on the urine and walked while wet?

It will be done by mopping one time then dip the mop in new water then mop again and repeat two more times?