Commiting an Act which the Marja Deems to be Prohibited
Question :

If a person commits an act which his marja deems to be prohibited, and on Judgment Day it is discovered that the act was not actually a sin after all, will this person not be punished for it since the act was not prohibited? Or will he get punished because he disobeyed the edict of his marja?

Answer :

The said person is not considered as disobedient, but is liable for proceeding to commit an act that he was informed to be a sin. An example of this is if a person drinks from a glass thinking it to be wine, but it turns out to be water.

Non-Shia Muslim
Question :

Is it permissible for non-Shias to make use of your edicts without becoming Shia Muslims?

Answer :

Our edicts are based on the teachings of the Imams of the Ahlulbait (peace be upon them) through the narrations that reached us in reliable ways, which all Muslims are required to act upon. The Prophet (peace be upon him and his holy progeny) ordered the nation of Islam to refer to the Ahlulbait and follow them in the famous well-known narration that is reported by numerous ways in the books of Shias and Sunnis: "I leave among you the two weighty things: the Book of Allah and my progeny; as long as you follow both of them, you will never be misguided."
Acting upon this narration, as well as other similar narrations, to follow the AhlulBait is not obligatory on the Shias only, but it is an obligation on all Muslims.

Two Rakaat
Question :

Why are there two Sajdahs (prostrations) in one raka'at, whereas there is only one Ruku (bowing)?

Answer :

We do not know the reason behind such a law since the prayer is a practice of pure worship, that consists of acts set by the Divine Legislator who likes to be worshiped in such a manner. He is the only One who knows the reason behind His desire to be worshipped in this way. The verses and the narrations did not explain such a law and we remain obedient to His orders.

The Prayers
Question :

Why do the Shia make the five prayers times into three prayers times, by praying Dhuhr and Asr together and Maghrib and Isha together?

Answer :

Shias did not make this up. The Prophet (peace be upon him and his holy progeny) joined between the Dhuhr and Asr prayers, and between Maghrib and Isha prayers when he was not traveling and when it was not raining - i.e. without an excuse and not during special circumstances - as per the texts narrated in famous Sunni narration books.

Khums
Question :

If someone says that khums is not obligatory, is that person out of Islam?

Answer :

If denying the obligation of khums means a denial of its obligation in the unused amount of the yearly income, then this does not affect the person being regarded as a Muslim. However, denying the khums in an absolute way is a clear rejection to the Quranic verses and the tradition of the Prophet (peace be upon him and his holy progeny).

Taqiyah
Question :

I have heard from Ahl-al-Sunna that a Shia Marja stated the following: "Reconciliatory Taqiyah. This type of Taqiyah is done when a person intends to reconcile with the other side or when he intends to soften their hearts. This kind of Taqiyah is permissible but not obligatory" they have related this belief to the verse: "When they [hypocrites] meet those who believe, they say: 'We believe.' But when they are alone with their evil ones, they say: "We are really with you, we (were) only jesting.'" (Quran, 2:14) I am having a hard time replying to this.

Answer :

The connection made of the Taqiyya which is based on softening the hearts with the said verse is originated from intolerance and ignorance of the reasons and justifications behind this law. All Muslims are under the flag of Islam, and softening their heart by the decrease of their differences is amongst the interests that has concerned the Shia and their Imams throughout history; whereas the verse talks about the hypocrites who do not believe in the Hereafter or in the foundations of the religion, and they claim to be Muslims in front of other Muslims. So how are those people related to trying to unite the Muslims and decrease the level of differences between them?
Those fanatics do not understand anything but intolerance and rejection of other sects and disregarding them, and do not care about the image of Islam or its high concerns. Today they are more harmful than the direct enemies of Islam as a result of their behaviors that originated from narrow minded thinking and blind prejudice.

Eating Pork
Question :

Why can not we eat pork?

Answer :

It is prohibited to eat pork because the Holy Quran stated its prohibition clearly when Almighty Allah said: "Forbidden unto you (for food) are carrion and blood and swine flesh, and that which hath been dedicated unto any other than Allah, and the strangled, and the dead through beating, and the dead through falling from a height, and that which hath been killed by (the goring of) horns" (The Holy Quran 5:3)

Turbah
Question :

Why do we pray on stones (turbah) and Sunnis do not? How can it be possible that they do not even have one document or narration on this issue? How is that when Muslims at the time of the Prophet (peace be upon him and his progeny) prayed in congregation and did not know that praying on sand/stone is obligatory?

Answer :

It was narrated that the Prophet (peace be upon him and his progeny) has said: "Indeed, Earth is made for me (by Almighty Allah) a place of prostration and a mean of purification (in tayammum)." This narration and the like clearly indicate that it is obligatory to prostrate on natural earth like soil, stones and the like, instead of carpets and rugs. Sunnis do not act upon these narrations either because of misinterpretation or they do not rely on them.

Dogs
Question :

Why is the dog najis in Islam?

Answer :

Islam is a divine religion that Almighty Allah revealed to guard the welfare of people. Almighty Allah knows the reality of things and what benefits His slaves, so He set laws accordingly for them to observe. Since Islam is the seal of religions, these laws are for until the end of this world. Because of corruption, badness and evilness in certain things or acts, He commanded us to refrain from them and made them prohibited. Similarly, because of benefits and goodness in certain other things, He ordered us to perform them and made them obligatory on us. Some of these laws are general and apply to all people, all the time, and anywhere.
The ability of the human being is limited, so is unable to find out and understand the reasons behind the Sharia of Almighty Allah. Sometimes Allah Almighty has taught us through the Holy Prophet and the Imams (peace be upon them), the wisdom behind certain few rulings. We must obey His laws by refraining from the prohibited acts and undertaking the obligatory acts, even if we do not know the reason behind each and every one of them.
The najasah of the dog is one of the rulings about which we do not know the wisdom behind.