Impurities

Q: My little brother got urine on his boots at school (at the bottom and top of shoe) and then walked from school to home in the snow, getting them wet. When he came home, he walked through the living room, spreading the wetness from his shoes all over the house. I did my best to wipe all the wetness off the floor but I don't even know all the places the water from his shoes got. Do I consider my living room to be impure? How can I make it pure again? I will have to mop the living room and the rest of the house, it that ok?

Q: I was shopping for wallets and came across one that is made of horse leather. Are products made of horse leather permissible to be used?

Q: What is the size of dirham in cm? I have searched a lot but I didn’t understand clearly. So please tell me in cm.

Q: Please can you tell me if the stool of a horse is napaak.

Q: If alcohol fell on my feet and shoes by accident, what should I do? Is ghusal necessary?

Q: I noticed a child had urinated a small amount on my bathroom floor. I wiped it dry, poured water over that area once, wiped it dry again and then sprayed and wiped with detergent spray once. Is that area considered paak?

Q:

1. If I have filth on my clothes less than a dirham size and my clothes get wet from the filth area, does this increase the filth size?

2. Can I pray in those clothes?

Q: Is the urine and stool of sheep, cattle and horses paak or napaak?

Q: If mazi comes out on underwear then how many times must you wash that area for it to become pure?

Q: I have a question regarding washing a place that is najis. I usually can see when this particular thing falls on the toilet seat but I know some water did flick off my hand when urine was on it. I washed the inner half of the seat, but was doubtful if it had gone onto the outer edge of the seat. I can usually see it if it falls on all parts of the seat, but because the seat didn't have anything on it I am still doubtful that it may have flicked onto the edge of the seat. My thigh also touched those places thats why I'm worried if it transferred onto me. I also saw something flick off my hand, but cleaned the floor because it felt like it hit the ground and not the seat. All of this is putting a lot of doubt in my mind? What should I do?