To Think , one needs a mind .. and when one put mind to think, mind will ask to questions ..how why and why not etc etc... Basic drawback with Islam is the flexibility to think.. because if some muslim thinks and raise a question..Muslim Clerics and so-called Mohammed followers would shut their mouth or raise a fatwa against that muslim..
The Muslims will have to wait till Kayamat ti get a chance to raise the questions... Tab tak inka Uddhar nahin hone wala...Khud to Dube hein..Saath mein Jis Country mein rehte hein..Vehaan auro ko dubaate rehte hein...