Q: On the occasion of Diwali, can we wish hindus happy Diwali? Also, can we take part in the fireworks celebrations?

Q: Must one make sajda-e-sahw if one misses the ruku in the last raka'ah in witr?

Q: I performed hajj and I wanted to be safe and give dam (penalty) but I already left Saudia Arabia and now I'm at home.  Is it still permissible to give dam and who can I give it to?

Q: I would just like to get clarity on a few aspects of Salaah (hanafi).

1. What is the correct way of performing ruku, does one say Allahu akbar first and then bend down, or does one say Allahu akbar in the motion of bending?
2. In witr Salaah, does one drop their hands and then raise it for dua Qunoot, or can one raise their hands directly from the folded position?
3. After salaah, I know it's sunnah to say Astaghfirullah thrice, is it also sunnah to say Allahu akbar once then astaghfirullah thrice?
4. Is salaah valid if in a 4 rakaats fard salaah, after surah Fatiha of the 3rd rakaah, you say just 'bis' of Tasmiyah before realising you don't read a surah now? If it is valid, what is the maximum length of Tasmiyah which may have been recited mistakenly without invalidating Salaah?

Q: I would like to study and become and electrical engineer. I live in the UK and working in this field means doing the job in domestic homes, factories, outside work, in offices and business, construction sites etc. Also men and women mixing is unavoidable. There may be a time (whether it's continuous or not) when I have a female client for a home domestic job, or an office company where men and women mix and whose company is something haram or a mix of haram and halal, like insurance or entertainment, restaurant that may sell alcohol. 

My question is: Can I still do this work for clients or provide them my services who may sometimes be women or a business which is haram, as the work may be varied; so one day at someone's home who is a woman or a business whose dealings are either haram or mixed, and another day with men and with a business that is halal for example?  Do I need to be picky? My job would be to just provide them with a service and my intention would be to earn a living. Would my earning be haram in any way?

Q: My question is based on my recent reading of Qur'an (specifically verses 24:31, 24:60 and 33:59) and the following Hadiths (Sunan Abu Dawud Book 32 4090, Sahih Bukhari Book 8 347, Sahih Bukhari Book 72 684, Sahih Bukhari Book 10 552 and Sunan Abu Dawud Book 32 4091) which focus on the subject of a Muslim woman's dress. My questions are:

1. Is an outergarment (jilbab) compulsary?
2. Is there any specifications for this jilbab such as it should cover from head-to-toe, be an overcoat etc? Or could it be any outer garment wrapped around one's body such as the dupatta or saree end (in the case of Indian clothes)?
3. And if the jilbab in the form of a coat/cloak is not fard and can assume any form such as a dupatta or large headscarf over a regular skirt-and-blouse combination, then would you please explain the meaning of the verse 24:60?

Q: I am 25 years of age, no proposal came for marriage, moreover even my parents don't want me to get married for the next 2 years. I feel lonely, all my friends are either engaged or married. I can't tell it to my parents that I want to get married as I am a girl. Please give me some wazifa, that I can read, in order to be blessed with a suitable spouse. We also don't have sufficient means to arrange my marriage.

Q: I want to ask whether registering on matrimonial sites allowed in Islam or not? I am looking for a girl to get married to so is it ok if I look for girls on these matrimonial websites. Please guide.

Q: My wife and I divorced. She went on to marry a Hindu through a hindu ceremony in India and now wants to come back to me. Is this possible Islamically?

Q:

1. Is duff (type of beating drum) allowed in Islam?
2. Is dhikr with duff allowed in Islam?
3. What is a khanqah used for?