Tahaarat

Washing impurity

Q:

1. At times we put impure wet clothes in the machine and it touches the side of it, when removing it the clothes touches the same part wich the impure clothes touched, does it become impure again.

2. If 1 drop of urine falls on a wet cloth, is the whole cloth impure or only that part?

3. If impurity is found on clothing that is already washed in a machine, must all the clothes be washed again?

Brushing the teeth before ghusal

Q:

1. Should I brush my teeth in order to remove the yellow particles before ghusl of janabah or can I just gargle my mouth? (Just gargling wont remove the yellow particles on the teeth)

2. I know that if one food particle is stuck on the teeth and is less than the size of a chana then no problem but what about if many particles got stuck in many teeth?

Sodomy with clothes on

Q:

1. When a man inserts his tip of penis in other man's anus, both should have fard ghusl right?

2. Is the ghusl fard even if when both had worn clothes? E.g. If one had worn pants and the other had also worn pants but penis went inside anus along with both pants. Is ghusl fard still? 

Wudhu breaking due to a gas problem

Q: Gas problem.

The problem is: When I go to make wudu I feel like gas is going to come out and I am unable to ignore that feeling and I get uncomfortable. If I make a fresh wudu for each prayer and leave that gas to come or not no problem then I can attain comfort. To do this I need to ignore that certain gas is coming out while making wudu. If I do this and sometimes gas comes or I feel like gas is coming which might be certain then I should ignore both cases or else if I start to make sure nothing has come out then I will again be in state of uncomfortableness. Regarding doubts Ii know that they should be ignored but i get doubts which can't be just ignored because of their "closeness to certainity" or "certainity itslef". So i thought of doing this:

Make wudu and pray and ignore the gas even if I am certain whether it be during wudu or prayer or after prayer etc. This gave me a relief. Can I continue this?