सिद्धू और कान्हू किस प्रसिद्ध विद्रोह से जुड़े प्रमुख नेता थे?

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?