Beautifying oneself at home

Q: I know that changing the creation of Allah Ta'ala is haraam, but I want to ensure one thing that if I beautify myself at home will it be haraam? My mom keeps telling me that its not haraam if I do it at home. I wear niqaab and I try not to show myself to anyone (I used natural elements). My face is darker than my body so I am really confused.

Using animals for medical research

Q: Is the animal research where mice and pigs are the subjects of medical research involving giving them certain experimental medicine as a trial before trying it on humans to see the adverse effects of the medicine or killing them for the purpose of research or as an ultimate end point of research permissible?

What if it is done with an intention of human benefit as humans cannot be the trial subjects in the frst phase of the research when adverse effects of a medication or intervention is not known and if animlas are not tried, research projects cannot go on and newer medical interventions/medications, diagnostic tools and treatment will not evolve. Is this kind of research considered to be a zulm on animals?

Withdrawing an oath

Q: About 5 years ago, I took an oath that I will not get involved with any female. If I did, then my nikah with her will terminate. Presently, my wife treats me badly, we do not share a bed. I am told to sleep in another room. I want to know, if I can withdraw my oath, as the scenario has changed? I am told to just issue her with her freedom, as she has been unhappy for the past 25 years.

Inheriting property that was purchased with money that was loaned from a bank

Q: If someone's father bought a lot of property in his life, but in the beginning, if he took a loan from the bank and mixed it with the money he earned to purchase some properties, if the father dies then is all the property halaal for his children? Because the father included the bank loan amount and bank takes interest when giving a loan.

Buying and selling shares

Q: Is it permissible to do share marketing. For example, I bought 100 shares of Reliance Communication for 35 Indian rupees per share. Suddenly the share value increased to 38 Indian rupees. So I sell the 100 shares on the same day and got a profit 300 Indian rupees. Is this halaal or not?