Sayyed Mohammad Al-Musawi

It is not allowed to deal with him as a real physical brother. Hijab is must on you in front of him if he is Baaligh and it is Haraam to shake hands with him because he is not your real physical brother.

Wassalam.

As such type of dealings are still not very clear for many scholars, some of our Maraaji' of Taqleed have not yet given any verdict about it, but there are Maraaji' who say that it is allowed to deal with cryptocurrency as far as it is a business not gambling, and has no harm on people and goes according to the rules and regulations of your country.

Wassalam.

There are many Du'as and Quranic verses for blessing the home after insuring that the home is not a place of committing sinful acts,  e.g. Ayatul Kursi , Sura Al-Hamd, Sura Falaq and Sura Naas etc. it is very useful to recite Quran or play Quranic recitation at home as well as Majlis of Ahlul Bayt (AS). A Hadeeth states: The most liked homes to Allah is the home where an orphan lives with honor.

Homes in which Night Prayer is performed lights for the angles of the sky like the stars which light for people of earth.

Wassalam,

Palm reading and coffee cup reading is not authentic and has no value as far as evidence or proof is concerned. Believing in it as an evidence is wrong as well.

Wassalam.

It is allowed for Muslims who understand Islam with its evidence to study in schools belong to non Muslims because Islam promotes useful knowledge from any one, but it is not allowed for a Muslim to take part in any non Islamic worship because it is wrong worship and your participation can give wrong message that you approve their worship despite Islamic rule that it is wrong.

Attending school assembly is permissible as far as it does not include a wrong worship. Christian schools keep on claiming that they do not force any non Christian student to attend Christian religious gatherings. If you are under pressure to attend church, you have full right to report those who force you.

 Wassalam.

It is not obligatory on him to cover the tattoos while praying as far as the tattoos are not promoting un Islamic values or faith.

Wassalam.

Battle of Karbala was never political but it was purely religious to save the religion Islam from the corruption of Bani Umayyad. Imam Hussain (AS) did not aim to gain a post or rule or a political position, but wanted to make Muslims aware the real Islam of the Prophet Muhammad (SAWA) and his Ahlul Bayt (AS) must be followed, not the corrupt rulers like Yazeed and his gang, that is why, he repeatedly declared right from Madina to Makka to Karbala that he is going to be martyred in Karbala to save the religion of Islam as there was no other option to save Islam at all but only through his martyrdom.

Wassalam.

Muslim should not promote any item linked with polytheism or any wrong worship under any excuse. Images of idols or wrong worship places should not be shared because it causes publicity of the wrong.

Wassalam.

Any work or act or business which causes or leads or results in sinful act is not permissible. Making both genders mix with out proper Hijab is not allowed in Islam. Usually gyms in western countries don't care for proper Hijab, that it why Muslim should not indulge himself in such business which can lead to sinful acts, otherwise he will be responsible and his income from such sinful business will not be lawful.

Wassalam.

Bulugh is the state when a human being passes the state of childhood which has no responsibility of obligatory acts, to the state of maturity when responsibility starts on him or her to fulfill the obligatory acts and avoid Forbidden acts.

Bulugh is the most important development in human beings' life as they leave the state of childhood and enter the state of being a mature human being with all the rights and duties of mature persons. Bulugh is the condition in every obligatory act with out which it is not obligatory, and it is the condition for the right to control your wealth and decide your life important issues. 
Wassalam.

It does not break the fast no matter how bad it is. Fast breaks only in commuting any of the nine Mufattiraat ( fasting invalidating acts)e.g. Eating, drinking, smoking, lying on Allah or on The Infallible etc.

Many sinful acts do not invalidate fast despite the fact that they are sinful.

Wassalam.

Vasectomy usually stops permanently the ability of having children, hence it is not permissible at all. Wassalam.