Qur'an

Yes. There are Quranic verses as well authentic Hadeeths.

'Quranic verses mentioned the similarity between Prophet Muhammad (SAWA) and Prophet Musa (AS) (Verily, We Have Sent to you a Messenger (Muhammad) , who will witness on you, as We sent Musa to Pharaoh as a Messenger) (Sura Al-Muzzammil, verse 15. The successors of Musa were twelve as we read in a Quran (Sura Al-A'raaf, verse 160). These two verses show that as Musa (As) had twelve successors, Muhammad (SAWA) will have twelve successors.

'Authentic Hadeeths narrated in Shia and Sunni books including Bukhari, Muslim , Tirmithi, Musnad Ahmad Bin Hanbal, Mustadrak of Al-Haakim and many others mentioned that the successors after the Prophet Muhammad (SAWA) will be twelve .

'Wassalam.

Such claims are not new, but go back to more than fourteen centuries when Quran was revealed in the Prophet Muhammad (SAWA) and his enemies refused to believe. The reply is in the Quran itself when Allah (SWT) asked them to bring a book like Quran even by taking help from all their associates from humans and Jinns. They failed to bring like it. Allah asked them to bring ten chapters like Quranic chapters to prove that Quran is man made. They failed to do so. Then Allah asked them to bring just one Syrah (Chapter) like Quranic chapters which are 114, but they again failed to do so. This itself proved that Quranic can never be from humans but from The Creator, Allah.

‘All the scholars who read Quran, admitted that it is a Miracle in every field. Even non Muslim scholars admitted this fact. Miracles of Quran are attracting millions of truth seekers to the Truth of Islam.

Wassalam.

We have many authentic Hadeeths about the seven heavens and the seven earths. Imam Ali ibn Musa Al-Ridha (AS) was asked : Where are the seven earths? In his reply he stepped his left hand, and then he put the right on it, and he said, ""This is the land of this world (the first earth). And the sky is above it.  The second earth is above the first sky. The third earth is above the second sky , then forth earth is above the third sky ,  -- and so until he said: - and the seventh earth above the sixth sky, the seventh sky above it, the throne of the mercy is blessed and above the seventh sky above the seventh sky, the saying of God: * ( Who Created seven heavens and from the earth like them) *
Bihar Al-Anwaar , Volume 60, page 79.

Wassalam.

Allah Has granted the Prophet Muhammad every knowledge which he did not know as we read in Quran ( And He Has Taught you every knowledge which you did not know) Sura 4, Verse 113.

The Prophet Muhammad (SAWA) was never unlettered but for the benefit of the message of Islam, he did not practice reading and writing in front of people  to avoid giving a chance to the enmities of Islam to accuse him copying from previous religious books.(Sura Al-Ankabout, verse 48).

Wassalam.

Hearing the angles is not restricted for the prophets only but many persons were mentioned in Quran used to hear the angles like mother of Musa ( We inspired to mother of Musa that: Suckle him ) Sura Al-Qassass, verse 7. 
Mariam, the mother of Easa used to hear the angles (Sura 3m verse 42 and 45) but she was never a prophet. Sara, wife of Prophet Ebrahim was also hearing the angles as we read in Quran (Sura Hood, verse 69 to 73).

Even Sunni Muslims claim that Umar ibn Al-Khattab used to hear the angles. They called Umar ibn Al-Khattab by the name: Muhaddath Al-Ummah. Fadhaa'il Al-Sahabah, by Mohammad Hasan abdul-Ghaffar, V.4, page 6.

The 12 Unfallible Imams were granted by Allah great gifts and abilities to guide the Ummah to the right path after the Prophet Muhammad (SAWA).

Islam was completed before the departure of the Prophet from this life. Infallible Imams never added any thing but preserved the real teachings of Islam. Their status definitely higher than mother of Musa and mother of Easa and Sara wife of Ebrahim.who were hearing the angles.
Wassalam.

The miracles of Quran are countless covering every dimension of the Holy book from its linguistic miracles to the members of related words and meanings to the scientific facts mentioned in Quran to numerical miracles to miracles to medical facts to facts in every field of science. The scientific facts in Quran had amazed many scientists and made them accept and confirm the fact that Quran can never be written by any human being but it is from God.

There are hundreds of  books written in this subject e.g. This is The Truth by Akram Hamed published by Amazon and many and many other books which can easily found in the in the internet if you just sear : Scientific facts in Quran.

'You can tell your schoolmates to read the statements of leading scientists after discovering the miraculous facts mentioned in Quran.

Wassalam.

Quran states in Sura 3, verse 61 that Ali (AS) is like the self of the Prophet وأنفسنا وأنفسكم. Say: (O Muhammad): Come, let us call our sons and your sins, our women and your women, ourselves and yourselves, then we pray and invoke the curse of Allah upon the liars. The Prophet brought Ali as himself. This means that Ali's status is the greatest after the Prophet Muhammad (SAWA).
The Prophet (SAWA) said to Ali (AS): O Ali, you are from me and I am from you.
- Saheeh Al-Bukhari , Volume 5, page 22.
- Musnad Ahmed ibn Hanbal 1; 98.
- Sunan Al-Bayhaqi ,V.8, P.5.
- Al-Mustadrak Ala Al-Saheehain by Al-Haakim Al-Nisbouri, V.3, P.120.
-Al-Khasaa'iss by Al-Nasaa'i, page 19. And many other Sunni books of Hadeeth.
'This prophetic statement is very clear that Ali is from the Prophet and the Prophet is from Ali. No prophet was having such high status from the Proohet Muhammad (SAWA).
Wassalam.

The obligatory recitation in SALAH must be with out mistakes of Qira'ah. Following the rules of Ghunnah, Idghaam and Qalqalah is recommended.

Wassalam.

This claim is untrue and based on misunderstand Quranic verses.

'You may ask them for details , then you will see that they have misunderstood many Quranic verses. 
Quran generally uses the word (man) for human beings whether man or woman. This is mentioned in most matters which concern man and woman, but in special matters of women, the word woman is mentioned.

Wassalam.

The number of the twelve Imams is mentioned in Quran when mentioning the divine leaders after Prophet Musa (Sura Al-Maa'idah , verse 12).

Allah (SWT) Mentioned that Prophet Muhammad is sent to people as Prophet Musa was sent. (Sura Al-Muzzammil , verse 15.

'From these two Quranic verses we know that the divine successors of the Proohet Muhammad are twelve just like the divine successors after Musa.

'Mentioning the names of the twelve Imams explicitly is not our job to ask as Allah did not mention explicitly the numbers of units of our most compulsory daily prayers and left if to the Prophet (SAWA) to explain. Allah Knows what to mention and not.

'As the Prophet Muhammad (SAWA) mentioned the number and the names of the twelve Imams, every Muslim must believe and follow the Prophet (SAWA).

Wassalam.