What is the ruling on making a false oath?
                                Making false oath indulges its maker in Hell; therefore, he is obliged to repent, ask Allah for forgiveness and make an expiation; feeding 10 poor or providing clothes for them and in case of incapability of doing any of latters he should fast for 3 consecutive days. And Allah Knows Best. 
                             
                        
                            
                                
                                Is it permissible to give Zakah (obligatory charity) to one`s poor sister, or brother?
                                It is permissible for one to give the Zakah to his poor sister, or brother if providing for them isn`t due on him, and the sister doesn`t receive sufficient provision from whomever that is due on. And Allah Knows Best.
                             
                        
                            
                                
                                Is it permissible for a woman to visit the doctor while in her `Iddah (waiting period)?
                                It is permissible for her to do that during day time, but it is impermissible for her to leave her house at night except for a sound reason. And Allah Knows Best.
                             
                        
                            
                                
                                What is the ruling of Sharia on woman shaking hands with non-Mahram man?
                                All perfect praise be to Allah the Lord of the Worlds. May His peace and blessings be upon our Prophet Mohammad and upon all his family and companions.
The Messenger of Allah (PBUH) said: "It is better to be stabbed in the head than touch a woman to whom one isn`t related." [Transmitted by Al-Tabarani /Al-Mo`jam Al-Kabir, Hadith No.16880]. Accordingly, it is forbidden for men to shake hands with non-Mahram* woman. And Allah The Almighty Knows Best.
 
 
* The women/men that you are allowed to marry. It includes all women/men other than mahram (including cousins).