Mazoor making tayammum

Q: I have some health issues and I have to renew wudhu before a salah starts because I am a mazoor or excused person (urine comes out). Can I do tayammun instead of wudhu? Because it takes me 10 minutes to do wudhu and I am not well plus if I wash my body parts too much they get dry. 

Female dentist treating male patients

Q: What is the ruling for a lady who is a dentist. While treating her male na-mahram patients, she have to touch their mouth area to do the required cleaning and surgery operations. She wears gloves during the entire operation or cleaning procedure.

Also, there are many male dentist doctors availabe in our city. Is it still halaal for her to practise dentistry and treat na-mahram male patients? What is the Islamic ruling on this?

Cleaning urine

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? 

Qurbaani for an unmarried girl

Q: I am a 25 year old unmarried woman (will get married in a few months). My parents passed away a few years ago and I don't have any other siblings. I live with a relative in very good condition. I am presently working with a medium level salary and I have a little inherited gold and a savings as well.

Please tell me if Qurbani is fardh on me? Some people say it's not because I'm an unmarried orphan, some say it is because I'm independent and earning myself.