goat,cow,camel or sheep
It depends on what kind of animal you have decided to sacrifice. It differs for goat, sheep, cow or camel etc. Sacrifice according to your pocket capacity.
This is an Islamic month in which Muslims perform Pilgrimage (Hajj). And also sacrifice the animal in the way of Allah.
those are the devils who told the wife of Prophet Abraham that he will sacrifice his son.
Fasting during Hajj days is NOT obligatory for pilgrims or non-pilgrims.
Muslims visit Mecca and Medina during hajj.
During Hajj, one can only wear (this would be a better-suited word) an Ihram (a white piece of cloth wrapped around the body).
Quran says (meaning English translation): { And complete the Hajj and 'umrah for Allah. But if you are prevented, then [offer] what can be obtained with ease of sacrificial animals. And do not shave your heads until the sacrificial animal has reached its place of slaughter. And whoever among you is ill or has an ailment of the head [making shaving necessary must offer] a ransom of fasting [three days] or charity or sacrifice. And when you are secure, then whoever performs 'umrah [during the Hajj months] followed by Hajj [offers] what can be obtained with ease of sacrificial animals. And whoever cannot find [or afford such an animal] - then a fast of three days during Hajj and of seven when you have returned [home]. Those are ten complete [days]. This is for those whose family is not in the area of al-Masjid al-Haram. And fear Allah and know that Allah is severe in penalty. (196) Hajj is [during] well-known months, so whoever has made Hajj obligatory upon himself therein [by entering the state of ihram], there is [to be for him] no sexual relations and no disobedience and no disputing during Hajj. And whatever good you do - Allah knows it. And take provisions, but indeed, the best provision is fear of Allah. And fear Me, O you of understanding. (197)} [Quran, chapter 2, verses 196-197]
63!
Yes. Hajj may be performed during pregnancy provided there is no danger of any harm to the woman and the baby.
you feel relaxed
Being well behaved a pre-requisit of Hajj. In certain cases it becomes obligatory to sacrifice a goat at Makka Mukarma.
In Hajj, stoning means to throw stones at figures that are set up there. It is done based on the history of an Islamic event, where Prophet Abraham was going to sacrifice his son in the name of their God, Allah. Satan was trying to stop him, but he threw stones at him in three places and that is where they throw stone during hajj. That is the story according to the Islamic belief.