Zikr and Dua After Salaah

Q: After your fardh salaah with jamaat, is it better for the Imaam to make dua loudly or softly and what's the best duas to read?

Q: Is it sunnat to say Allahu Akbar after the salaam of a fardh namaaz?

Q: Is it sunnat to make dua after fardh salaat and a hadith supporting it if it's true. Many of my friends tell me that's an Indian innovation and not a sunnat of Nabi (sallallahu alaihi wasallam). Please advise. 

Q: A person has the habit of making duaa individually after fardh salaah. He thus delays his sunan for approximately 10 minutes. What is the sharee ruling regarding this? Will this be makrooh?

Q: Is it sunnah to place the right hand on the forehead after fardh salaah? If it is, what dua or zikr should be read while doing it?

Q: I would like to ask that is it authentic Hadith that we should read la ilaha illalahu wahdahu la sharik lahu lahul mulku wala hul hamd wa hua ala kulli shaiin qadeer 10 times after every fard prayer?

Q: A few weeks ago an email was sent under the heading azkaar after salaah. It mentions putting the hands on the head and reading for the removal of worry and grief. Can Mufti saheb please send me that azkaar. 

Q: Is saying 33 SubhanAllah, 33 Alhamdulillah and 34 times Allahu Akbar after each prayer rewarding? 

Q: In some coutries, ulama say that zikr (like Lailaha illahu wahdehu la shareeka lehu... zal jadda minkal jadd) which is done after prayers with loud voice is sunnah. We have never heard our ulama or Imamas in Pakistan doing zikr after prayers with audible voice. Can you please guide what is Sunnah?

Q: What masnoon duas can be read after a fardh salaah?