Akash can do a piece of work in 74 days. Vishal can do this work in 37 days. Akash started the work alone. After how many days should Vishal join him, so that the total work is finished in 40 days?

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?