Conditions & Fundamentals of Hajj and Umrah

Is it compulsory upon the husband to take his wife for Hajj

Q: I planned to go for Hajj with my wife but she got pregnant and then I went alone and performed Hajj this year. My question is: Is it compulsory on me to take my wife for Hajj; if yes then when? (I heard I can't go for Hajj for next five years according to Saudi Hajj Policy as I just performed Hajj this year) Is it fardh on the husband to take his wife for Hajj?

Delaying the tawaaf-e-ziyaarah

Q: A person delayed doing his tawaaf-e-ziyarah till the last few hours before sunset on the 12th Zul Hijjah. Whilst proceeding from Mina to complete the tawaf-e-ziyaarah, the police prevented him from proceeding to makkah. He attempted going through the police blockade a few times but to no avail. The time period prescribed to complete the tawaaf-e-ziyaarh thus elapsed (i.e. sunset on the 12th Zul Hijjah). Will damm be wajib on him ?

Boundary of Muzdalifah and Mina

Q: The Saudi authorities have included a considerable area of Muzdalifah into Mina proper and named it as New Mina and they accommodate pilgrims in this area as if it is Mina proper. However many haajis returning from Arafat in Haj also spend the night here as for all practical reasons it is actually a part of Muzdalifah as per the boundaries that existed during Prophet's time. So does Wuquuf of Muzdalifah of these Hajees get fulfilled? And also then what is the status of haajis who are lodged here (New Mina) instead of within the actual boundaries of Mina as it existed during the Prophet (Sallallahu Alayhi Wasallam's) era.

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?