Allowing someone who consumes alcohol to use one's utensils

Q:

1. If someone drinks alcohol and then uses my utensils for drinking water or uses my spoon will my utensils become napaak as his mouth will be impure?

2. If I use a dishwasher to clean impure utensils soiled by alcohol or something impure will the dishwasher be impure? Do I have to wash it?

3. Once an impure glass which was previously containing impure substance is washed can I consider it pure and use it?

4. Washing impurities in the sink makes the sink impure?

Gender change treatment

Q: I am a transgender person. Is it permissible in Islam to seek treatment? The treatment would consist of taking hormones to transform my body form male to female in order to match my gender identity. If not could you please give any other advise as my life is getting difficult day by day.

Zakaat questions

Q: Is it permissible to give zakat to a brother/ sister, in the following scenarios?

1. He lives in UK with wife and kids, he owns almost everything, yet has outstanding mortgage (with interest), can zakaat be given to him so he may
discharge that mortgage? Can zakaat also be given to him for other expenses whilst his mortgage still exists?

2. He does not have a house, is single, no job, has a car, receives benefits inside UK, owns a small piece of land overseas where he will eventually build
a house, and lives in his unmarried sister's house, he also has savings of £12000 in a bank, can zakat be given to him?

3. She lives overseas, is married with children, all over 18 years of age, the husband and 2 sons do work, but earn just enough to live comfortably,
they own their house, and have almost everything they need for example washing machine, tv, cooker etc. however they do not have savings etc. So
they are not obliged to give zakat themselves, can zakat be given to them? If yes, can zakat be given to them up until the point they themselves get in to
a position where zakat becomes payable by them?

4. Does the husband have to pay zakat for his wife's jewellery, where is claims she is the owner of it?  Is the wife not obliged to pay it herself?