एक पिता अपने पुत्र से पांच गुना बड़ा है, लेकिन 15 वर्ष बाद, वह अपने पुत्र से केवल दोगुना बड़ा रह जाएगा। पिता की वर्तमान आयु क्या 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?