He did ghusl then he realized that the water had not reached his foot

He did ghusl and prayed, then he realized that he had missed a part of his body and the water had not reached it

In ghusl it is sufficient to make the water reach all areas of the body

A woman does not have to sit when doing ghusl

Can he delay washing his feet until he has finished doing ghusl?

If she has a needle fixed to her stomach with a dressing, can she wipe over it when doing ghusl?

He was junub and the iqaamah for prayer was given – should he pray or do ghusl even if he will miss the prayer in congregation?

She did not know that it was obligatory to do ghusl; does she have to make up the prayers?