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.

Husband drinking his wife's breast milk

Q: Suppose if a couple have a baby who has just reached 2 years of age and as a result baby's mother stops breastfeeding him. But there is milk left in the breast and the husband wants to drink this milk intentionally during foreplay. Can the husband do this because this milk has no use now as their child no more drinks breast milk. Please give me the answer as soon as possible.