Imaam performing Salaah in the state of janaabat

Q: If an imam performed Salaah in a time and he is in janaabat and he knows that he is in janaabat but still he became Imam and performed the Salaah, and he did this many times like more than 100 times and for different prayers, so now if he wants to make tauba but he still can't tell those people that repeat their Salaah because actually he also don't have any count of prayers so if he did tauba is there any possibility that Allah Ta'ala will forgive him?

Woman's I'itikaaf breaking due to haidh

Q: I made an intention for sunnah itekaaf in Ramadaan. Unfortunately I was only able to sit seven days due to haiz. (Mufti I had miscalculated my days.) I have sat 1 day in itekaaf as qazaa and my intention for the fast was for a Ramadaan qazaa fast. Is this correct or do I sit for 3 days in itekaaf? Is my fast correct? Mufti was I sinful in miscalculating my days? It grieves me greatly. Please advise.

Making wudhu with cold water

Q: I came across a hadith in which making a complete wudu under difficult circumstances is praiseworthy ("إسباغ الوضوء على المكاره"); one interpretation being when the water is cold. Can we choose to make wudu with cold tap water with the intention of earning this extra reward, even though warm water is also available? Or is the reward only when no warm alternative is available at all?

Using a mask in Ihraam

Q: I have a few questions regarding hajj.

1. For example while in Ihram can one wipe his head and face with a small hand towel as it is going to be hot, especially in arafah?

2. While in Ihram can one use toothpaste to brush?

3. When you are in Ihram can one wear a dust mask as they are sensitive towards dust and fumes?

Website par ads lagane se paisa kamaan

Q: Mera sawal hai kya me website se se earning kar sakta hun. Woh website Information daine ki ho gi logon ko like Wikipedia or Us website pe ads bhi chale ge lekin woh saaf ads hon ge haram nahi hon ge. Earning es tarha se ho ge agar koi mera dost meri website ko view kare ga or us ads pe click kare ga to us se mujhe earning ho gi or woh ads ke Paise or amount different hai fix ne hai.

Giving secular tuition and selling secular textbooks and notes

Q:

1. Is it correct to give tuition to students studying at secular universities? It would involve a male giving tuition to other males only.

2. Is it correct to sell the notes, past papers and textbooks etc. for certain subjects at secular universities?

3. Is it correct to sell the notes, past papers and textbooks etc. for certain subjects at secular correspondence universities (like Unisa)?

All three questions above relate to permissible subjects viz., mathematics, accounting and computer programming.