निम्नलिखित में से कौन सा मुख्य रूप से पूर्वी यूरोप, पश्चिमी एशिया और मध्य एशिया में स्थित सोवियत-उत्तर (Post-Soviet) देशों का एक आर्थिक संघ है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?