किस जलडमरूमध्य को भौगोलिक रूप से 'आँसुओं का प्रवेश द्वार' (Gate of Tears) कहा जाता है?

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?