Tahaarat

Q: I use a raised toliet, when I use water to clean my private part, this water touches dirty water in the toliet then some dirty tiny drops of water bounce back to my legs so basically when I was wash my private part with water this water drop down and mix with dirty water then bounce back to me.  When I look carefully I see very tiny drops of water on my legs. Do I need to wash my legs with clean water? I was told by an Aalim that I don't need to wash my legs because they are only tiny drops of water.  I was told to ignore this but I worry my salah will not be valid.

Q: I was making istinja and the toilet water is high and I don't know if any water splashed on me while I was pouring water to clean myself so should I leave it or take bath?

Q: I made ghusl and soaped my body twice then gargled and put water on my nose but something tells me I've missed places out although I soaped the whole body twice. Could it be possible for me to miss a place out if I soaped the whole body twice and will fard ghusl be done?

Q: After having sexual relationship with my husband and my husband ejaculates and this gets on the sheet bed. What should I do? Remove the bed sheet and wash it completely or can I just put some water to wash the dirty parts?

Q: I gargled once and put water in the nose soaped the bottom half then top half then rinsed is ghusl done? I am confused in my mind I think its
not done at all that I might have missed some place out as I was standing under the shower.

Q: How should a Miswaak be disposed of?

Q: In fard ghusl under the shower is it possible for any hair to remain dry?

Q: What is the proper method of cleaning a chair (which has najasah on it), if the chair is of the same material as a sofa (i.e. the chair is not a
non-porous surface)? Is using a wet cloth sufficient to clean the chair?

Q: Do you have to gargle in fard ghusl or can you just move water around in your mouth like in wuduh?

Q: I woke up and there was this whitish liquid that was inside. It hadn't come out but after I urinated got up and everything it hurt and I am quiet constipated but I didn't go to pass stool then or anytime before so should I consider it as wadi? The only time I went for stool was yesterday evening and later yesterday I went to the toilet put pressure but nothing come out.