Clothing guidelines for females

Q:

1. All the cloth material of my clothes are such that when sunlight passes through them, or if in the light of my room itself if I stand in certain angles, in correspondence to the light the cloth becomes little transparent, and I have seen many cloth materials like this, and I think they are all like that. Please advise me if I am checking in the wrong manner?

2. Should the cloth material be so thick that you should not be able to see anything through it if you take the material in your hands and see through it by placing it in front of your eyes?

3. I want to wear dreeses as per the sunnah way, please advise me in detail how should I make my dresses stiched (for females). Should I make my nape covered by stiching a collar?

Till where should the length of the shirt go (for wearing with shalwaar)?

Can there be slits? Can it be round at the bottom? Is it enough for it to be 2 inches loose from actual measurement? 

Homosexuality

Q: 'I am in a very difficult situation, my family is now persuading me to get married. However, the problem lies in the fact that I'm only attracted to men. I have no feelings for women whatsoever... I consider myself practising. I wouldn't want to get married and wreck somebody else's life... What do I do?! I'm somebody who'd rather stay single and control my desires but it's a really sticky situation. 

Making zikr

Q: Can I read this tasbih all time after fardh namaz: 

1. Istighfaar 100 times

2. La ila ha illalah 100 times

3. La ilaha ila anta subhanaka ini kuntu minaz zalim 100 times

4. Subhanalah wa bi hamdi 100 times

5. Hasbi rabi Allah 100 times

Even in my qiyamul layl I read all these tasbeeh and I have a habit to finish my tasbih in my qiyamul layl 100 times first kalima, 100 times 3rd kalima and 100 times istighfar, is it ok?

Relationship with a grandmother who is involved in interest

Q:

1. What is the ruling for the one whose grandmother's eats sood and her money comes from bank sood? What attitude should be adopted by her grand children with her? 

2. Is it permissible for grandchildren to give gifts their grandma?

3. Is is necessary for grand daughter to cover head and satr infront of their grandma?

4. Is it permissible for grandchildren to give very much love to their grandmother?

Are the following Quraanic Aayaat?

Q: Can you please tell me if these are Quranic Ayahs or not.

1. اذا رأيت من غيرك خلقاً ذميماً فتجنب من نفسك أمثاله

2. أبشروا باليسر يا أهل العسر؛ فوالله لن يغلب عسر يسرين 

3. اذا رأيت أخاك مكروباً فقل له ؛ أبشر الفرج قريب وإذا رأيته في عسرة فقل له؛ أبشر اليسر قريب

4. فالكم بشرى تسر قلوبكم

Smoking weed

Q: My brother has smoked weed and me and my family are very worried, will this mean his duas won't be accepted for 40 days?

What is the ruling and is weed really bad?