If the water-cement ratio is 0.5 and cement content is 400 kg/m3, compute water content without and with a water-reducing admixture that saves 15% water.

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?