Haiz, Istihaazah & Nifaas

Q: I would like to clarify whether the following mas’alah is correct: 

If a particular woman has a haidh habit of 7 days and 3 days after the expected date of her haidh she began bleeding and she bled until the end of the 12 days then in this case 4 days will be regarded as haidh and the remainder as istihaadha. Thus from the following month her new habit will be 4 days. For example a woman has a habit of bleeding from the 1st to the 7th of every month. During a particular month she bled from the 4th until the 15th. Thus the first 4 days i.e. from the 4th to the 7th, will be regarded as haidh and the remainder will be istihaadha. Thus qadha will be necessary for the days of istihaadha.

Q: Is it permissible for a woman to remove unwanted hair during her menses if the length is more than a grain of rice and a period of 40 days has passed? Will she still be committing a makrooh act?

Q: My wife wants to know if she can cut/clip her nails while she is in haidh? Sumone told her that she can't, but what if they are now long and ugly lookin and she does'nt like that? They are now starting to chip.

Q: After having a baby, you are on your periods for 40 days. Does that mean that its not allowed to read namaz for that time period?

Q: When I have my monthly and when my washed/clean clothes are kept on my bed does my clean cloths become napaak as well and do I need to re wash again?

Q: I have an irregular cycle, or rather haven't made a proper recorder of my dates, until recently. Since July this year I've made a sincere effort to monitor my haidh. I've notice that I usually have my haidh for 3-4 days each month with paak days of 18-20 days. However sometimes I have absolutely no discharge after 3 days and I start to spot within the 10 day period for another day maybe 2 or 3. Is this haidh or istihaiza as it is not my habit? I am on a pill. I am very concerned as I am leaving for Haj and not sure how this would affect my Salaah and tawaaf e-Ziyaarat. Do I follow my new habit or that before the pill?

Q: A lady ended her haidth on the 8th day of her cycle. After 4 days she began to bleed again. The bleeding has now lapsed into the 15th day, is this considered haidth or istihadah and should she keep fasting and reading Salaah?

Q: My friends insist that there is qadha for missed Salaah during haidh just like there is qadha for saum. I tried explaining to them that there isn't but all they say is that I am not learned and the learned have told them. Its reached a stage where they are calculating their missed Salaahs and making qadha of it.

Q: I continuously get a discharge (from yellow to white) after haidh. What must I do if I feel the discharge during Salaah? Should a break the Salaah and renew my wuduh? How much liquid has to be discharged in order for the wuduh to be broken? What is the minimum time that one can be considered a ma'zurah?