Share of profit fixed as percentage of capital

Q:

1. I got an offer from somebody that if I invest some money with him, for example 100 USD then he will give me back 130USD after one month without any work. Is it halaal?

2. Somebody told me if I invest 100 USD in his website and work daily for it (I think work will be related to share his company, website or post something about his business on social media) then he will give me 130USD back after the month. Is it halaal?

3. Somebody told me if I invest 100 USD in his Business/Website and daily work for it (work is related to his advertisement) then he will give me back 200 USD means double after the month. If I do not work for them then they will give me only 20% earnings on my investment on monthly basis. Is it halaal?

4. Somebody told me if I invest 100 USD with him whether I work he will give me 30% on my investment and if I do not work then he will also pay me 30% on my investment. Is it halaal?

5. Somebody told me if I invest 100 USD with him and daily work for it (work is related to his advertisement) then he will give me 30% profit on it and if I do not work then he will not give me any profit means my earnings/profit depends on my daily work. Is it halaal?

6. Somebody told me if I invest 100 USD with him then he will give me 130% on end of month means 130 USD. There is no work for me. Now here is the question they said either they earn 1000 USD or 1 Lac USD they will give me fixed 130% and something occurs bad and if they collapse their business/website then they will give me real seed money/investment without any profit. Is it halaal?

7. If I buy 50 USD AdPack from any Website/Company and it makes 55 USD and the work is watching of 10 Ads Daily then after making of 55 USD the adpack expires (ads are related to different websites, companies, hotels etc, means related to every aspect of life). Is it halaal?

Gender change

Q: I want to clarify regarding sex change to female as I'm a non-muslim. I love a guy too much more than my life. For him I can do anything. Even I can sacrifice my whole life as well. He also likes me very much for the same, so I at last decided there is only one way. That is to change to female then become Muslim and marry him, settle my life as a happily living couple forever. So please I'm seeking your advice here. First of all, I'll change my sex than later I'll become a Muslim. Next I'll marry him and settle down to a happy life as we both understand each other very much. So you are the only hope for us, because we can do this in a direct way, but we would like to seek your advice on this.

Dry najaasat

Q: If there is dry najasat-e-ghalizah on a wall, will wiping it down once suffice? Also if clean dry clothes were placed on something that had the dry najasat-e-ghalizah on it, will they become napaak?

Showing respect to the Hadith

Q: I am really worried. I was talking to a friend and we were arguing on something. He said if you leave it for 40 days you will forget it. Get used to not having it (at that time I didn't have it in mind that it's a hadith). Then he said it's a hadith and we were in argument and I said I know it's a hadith and I said don't put hadith into worldly matters. Since then I am worried that may be I denied a haidth unintentionally. I need your guidance.

Men using perfumes which leaves a stain on the clothing

Q: Is it permissible to use perfumes which contains saffron, as in a hadith our beloved Nabi (Sallallahu Alayhi Wasallam) has prohibited it. Is this Hadith still applicable?

باب في الخلوق للرجال 4176 حدثنا موسى بن إسمعيل حدثنا حماد أخبرنا عطاء الخراساني عن يحيى بن يعمر عن عمار بن ياسر قال قدمت على أهلي ليلا وقد تشققت يداي فخلقوني بزعفران فغدوت على النبي صلى الله عليه وسلم فسلمت عليه فلم يرد علي ولم يرحب بي وقال اذهب فاغسل هذا عنك فذهبت فغسلته ثم جئت وقد بقي علي منه ردع فسلمت فلم يرد علي ولم يرحب بي وقال اذهب فاغسل هذا عنك فذهبت فغسلته ثم جئت فسلمت عليه فرد علي ورحب بي وقال إن الملائكة لا تحضر جنازة الكافر بخير ولا المتضمخ بالزعفران ولا الجنب قال ورخص للجنب إذا نام أو أكل أو شرب أن يتوضأ حدثنا نصر بن علي حدثنا محمد بن بكر أخبرنا ابن جريج أخبرني عمر بن عطاء ابن أبي الخوار أنه سمع يحيى بن يعمر يخبر عن رجل أخبره عن عمار بن ياسر زعم عمر أن يحيى سمى ذلك الرجل فنسي عمر اسمه أن عمارا قال تخلقت بهذه القصة والأول أتم بكثير فيه ذكر الغسل قال قلت لعمر وهم حرم قال لا القوم مقيمون ابوا داؤد