प्रथम विश्व युद्ध के बाद कहाँ के खिलाफत (खलीफा पद) के साथ हुए अन्याय के विरोध में भारत में खिलाफत आंदोलन शुरू किया गया था?

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?