भारत की सबसे लंबी नदी कौन सी है, जो किसी समुद्र या महासागर में नहीं मिलती बल्कि भूमि पर ही समाप्त हो जाती है?

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?