Making dua in Ruku and Sujood

Can we make dua in Sajdah and Ruku?

Praying in Shoes

Can we pray while wearing shoes?

Dua in Sajdah after witr

Is there a hadith which promises immense reward of saying specific tasbeeh in sujood after Witr prayers?

Missed Prayers

What is the ruling on missed prayers of many years (Qada-e-Umri)?