Does Ghusl Count as Wudu?

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

The Difference between Maniy, Madhiy and Moisture

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?