Qiraat

Q:

1. Must the surah recited in the second rakaat be shorter than the surah recited in the first rakaat?

2. If so, how is the length of a surah determined?

Q: I read in tafseer Ibn kathir that Surah Fateha has seven verses in it and there are some Hadith also there in that tafseer from two sahihs that Bismillahir rahman nir Raheem is a first verse of Surah Fateha. There are only seven verses in Surah Fateha. Now, I saw in Sahih Bukhari Narrated From Anas bin Malik (radhiyallahu anhu): Nabi (sallallahu alaihi wasallam), Abu Bakr (radhiyallahu anhu) and 'Umar (radhiyallahu anhu) used to start the prayer with "Alhamdulillahi rabbil aala min" Vol-1,book 12, number 710. ( Sahih Bukhari-- characteristics of prayer). Now, what should we start the prayer with?

Q: Some time ago, I did not know that I have to read salah with tajweed. So for like almost 5 years I read salah but did not follow the proper rules of elongation and madds. Do I have to repeat the salahs?

Q:

1. How will one correct themsleves if they make the follwoing mistakes in Salaah.

1.1. Doubt which word it is and so reads both e.g. ya'lamoon and ta'lamoon

1.2. Gets stuck and cannot complete the ayaat

1.3. After completing the salaah (nafl or fardh) realise they read an ayah incorrect or missed out a part 

Q: In salaah for Hanafi's, should they recite surah Fatiha while following an Imaam in fardh salaah? 

Q: Is it allowed to recite two surahs which are not in correct order in one rakah?

Q:

1. Is it compulsory to recite Tasmiyyah before Surah Fatiha in the 2nd, 3rd & 4th rakaats of Salaah.

2. If we mistakenly recite Surah Naas in the first rakaat of Salaah, how do we continue with the rest of Rakaats? Will Sajda-e-Sahw be compulsory?

3. If I mistakenly recite a Surah in the second rakaat which is earlier in order to what was recited in the first rakaat, should an additional latter Surah be recited if it is realised within the rakaat?

Q: Should we read a dua when the imam reads the last verses of Surah Gashiyah?

Q: In chapter no 7 (Surah Al-Araf) verse number 204 it is stated that "When the Qur'an is read, listen to it with attention, and hold your peace: that ye may receive Mercy". So why do people when praying Fajr, Maghrib and Isha (fardh) behind the imam (first 2 rakahs), when the imam finishes reciting surah AL-Fatiha, many people recite surah fatiha, although the imam is reciting another surah. Please do clarify this.

Q: Can I read the same surah in both rakats of a farz salah? For example someone reads surah fatihah and surah ikhlaas in the first 2 rakats of zuhr farz.