1 Question: Is cream a barrier to water reaching the skin, and if so should it be removed prior to wudhu and ghusl?
Answer: Apparently the effect left on the skin after it is applied is nothing but just moisture, and so it does not constitute a barrier to water reaching the skin.
2 Question: Can I offer Salatul Layl before midnight?
Answer: If you cannot wake up before dawn to offer them, you can offer them before midnight.
3 Question: Can a woman do wudhu or ghusl without removing her nail polish.
Answer: It is necessary to remove the nail polish.