He makes some useful contributions on the Internet and sometimes he checks out haraam things, should he stay there or leave?

She has committed sin and wants to repent

Validity of the Fast While Masturbating and Not Ejaculating

Practising the secret habit (masturbation) in Ramadaan

Should he encourage a relationship between a Muslim man and a kaafir woman so as to protect her from evil and call her to good?!

Is it permissible to go to beaches where there is nakedness and free mixing?

If he puts his status on Messenger/Facebook saying that he is out when he is at home

Deceiving and lying are not permitted in dealings with others

Is it permissible to steal from the kuffaar?

He had a customary marriage with her (zawaaj ‘urfi) then he left her and ran away!