सुमित्रानंदन पंत को उनकी किस काव्य कृति के लिए ज्ञानपीठ पुरस्कार मिला था?

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?