1 जनवरी 2015 को भारत में 'योजना आयोग' को किस संस्था द्वारा प्रतिस्थापित 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?