Qiraat

Q: If a person repeats an aayat of Surah Faatiha to correct a small tajweed mistake, will he have to make sajdah sahw if done forgetfully?

Q: After reciting Surah Ikhlaas in salaah, I mistakenly said sadaqallahul azeem. Is my salaah valid or is there sajdah sahw?

Q: When you want to read a big surah in salaah, but not in full. Is it okay to read from anywhere in the surah and stop anywhere? And can you read one part of a surah in the first rakaat, the part after that in the second rakaat? Or do you have to read different surahs in each rakaat? 

Q: How does one know when to repeat salah if a mispronunciation occurs, e.g. does pronouncing ملحق at the end of dua e qunoot as ملهق, require one to repeat? I.e. Using smalll haa instead of big haa.

Q: How long should the pause be between Surah Faatiha and a surah in salaah?

Q: In Zohar when reading behind the imaam, are we supposed to also read Surah Fatiha and a Surah?

Q: In Asr prayer in Jamaat, when we stood up for the second Rakat, I said Bi, I had to say Bismillahirrahmanirrahim, but then I remembered that in Jamaat, we don't have to recite behind Imam, the Qira'at of Imam is enough for us, so I stopped after just saying Bi. Was my prayer broken or is it valid? 

Q: As we know it is waajib to recite the first 3 verses of Surah Faatiha in every rakaah of salaah.

I heard a mufti say that qiraat changes the amount of verses in the Quraan. If I recite the first three verses of Surah Faatiha and combine the second and third verse and not recite further would my prayer be valid?

Q: What's the sunnah method of reading Surah Faatiha in salaah? Each ayah a different breath? Or joining more than one ayah in one breath?

Q: How many verses of Surah Fatiha is waajib to recite in salaah?