Is it permissible for a woman to apply Kuhul (Halal eyeliner) and go out wearing it?
Kuhul is part of a woman`s adornment, and it is forbidden for her to show that to anyone other than a husband, or a Mahram (Unmarriageable kin).
Is it permissible to swear by (Allah ”The Living”)?
Yes, it is permissible because “ The Living “ is one of Allah`s Attributes.
Is it permissible for a woman who is in her `Iddah (waiting period) due to the death of her husband to go out and mix with non-Mahrams(Marriageable men)?
A woman in such a situation is only allowed to leave her house for a sound reason such as visiting the doctor, and she is only allowed to mix with her Mahrams(Non-Marriageable kin) since it is permissible for a woman, whether in her `Iddah, or not, to mix with her husband and Mahrams. However, she is allowed to accept condolences, and answer inquiries about her situation after such a calamity.
What is the ruling on exchanging kisses and hugs between husband and wife during the day in Ramadan?
Praise be to Allah the Lord of the Worlds. It is disliked to kiss one`s wife during the day in Ramadan, and it is recommended to avoid that. And Allah the Almighty knows best.