Is it Sunnah to do ghusl on the Day of ‘Arafah?

Ruling on rubbing the body with a sponge or loofah when doing ghusl?

She used to pray but she was not aware of the obligation of ghusl after menses

She saw a brownish discharge on the day after her had period ended and she had done ghusl, and she did not pay any attention to it, then she did another ghusl, and now she is not sure whether her ghusl and prayer were valid

Does he have to do ghusl if he only sees a non-mahram woman or talks to her?

She is asking how she can teach her mother and sister about the rulings on tahaarah (purification)

He did ghusl with the intention of doing it for Jumu‘ah and he forgot about doing it for janaabah; did it remove his impurity?

If he has a wet dream in the wilderness, how can he do ghusl when his friends are present?

He wants to do ghusl as prescribed in sharee‘ah, using shampoo and soap