पृथ्वी पर उत्तरी एवं दक्षिणी ध्रुवों को जोड़ने वाली रेखा को क्या कहा जाता 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?