Who were the Ansar?
Why is the grave of Lady Fatimah (as) still concealed, while Imam Ali’s (as) has been revealed? 
What is the relationship between a name and the named especially in regards to the names of the Infallibles (a.s.)? 
Could you please explain the essence of infallibility? I personally believe only God is infallible.
Why shias are exaggerating about Imam Ali and other Prophets family, like considering them as God’s hand, God’s eye?
Why didn't Prophet Mohammad write down the sanctity of Imam Ali to verify the matter so as to avoid any opposition? 
The Twelve Imams
How possibly will the earth be filled with oppression and injustice just before Saint Mahdi’s reappearance?
Why Shia?