Identify the law, principle, or theorem associated with the following description: 'A body immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the body.'

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?