पूर्व सोवियत संघ के किस शहर का नाम, जिसे ऐतिहासिक रूप से लेनिनग्राद कहा जाता था, 1991 में बदलकर पुनः उसका मूल नाम कर दिया गया?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?

Which of the following viceroys of India is associated with the 'Ilbert Bill' controversy?