Hair dye

Q: I have heard it's permissible to use black dye, but I have a doubt. Nowadays we can't say what all the ingredients in the packets are. Is all type of dyes allowed?I have heard that our wudhu and bathing won't be correct since its a kind of paint. Often the hair colouring damages our hair. Knowing about such (scientific) damages, does Islam say "no" to use such types of dye.

Doubting one's children

Q: One of my friends has obssesive compulsive disorder. She always doubts things. Now she's doubting if her children are her own children or not because she saw on news that the hospital she delivered her children, they sometimes forget to put the mothers name tag on the child's hand so the child might go to the wrong mother. Thats why she is really worried. What should she do now? 

Fluid coming out after ghusal

Q: I broke my ghusl yesterday and today before performing ghusl, I trimmed my pubic hair by applying shaving gel then fluid started coming out of my private part. I sat on the toilet seat for like 20 minutes squishing my private part to get all the fluid out, but it was continuously coming out. I got under the shower for 5 minutes and again went to the toilet seat to check if it was still coming out, there was a little of it but after squishing it twice, the fluid stopped coming out, I checked twice and there wasn't any fluid. I performed ghusl but I am not sure if that fluid came out during the performance of ghsul or not or afterwards. Do I need to perform ghusl again?

Note: I face a lot of waswasa during ghusl and it takes me about half and hour to perform ghusl! It's really hard for me so I just don't want to do it again!

Memorising the Qur'an during haidh

Q: Is it allowed for a menstruating woman who is memorizing Quran (doing Hifz):

1. to memorize from Quran

2. Memorize from Mobile or laptop without touching the script

3. To attend Quran lesson with teacher (both listening Quran from others and reciting herself)

4. To recite from her memory

If No, is there any way she can explain to her teacher as she follow some other school of thought (fiqh) and says it is okay to attend classes during this time of month? And is it haram (or Sin) for a student if she follows her teacher in this case if her teacher is wrong?

Investing in shares on the stockmarket

Q: I have been investing in shares for the past two years and I have earned a good amount of profit so far. When investing, I avoid buying shares in companies such as banks, insurance companies, companies manufacturing and selling liquor, etc. I only invest in companies of which the main business is halaal. However, when I look at the financial statements of the companies, I find that these companies do have interest dealings and some other haraam elements in their operation. Will it be permissible for me to invest in these companies? Also, will the profits earned through the investment be halaal?