प्रसिद्ध नारा "तुम मुझे खून दो, मैं तुम्हें आजादी दूंगा" किसने दिया था?

The Karachi Session of the Indian National Congress was held in the year ________ and was presided over by ________.

Where was the 'India House' organization, founded by Shyamji Krishna Varma in the early twentieth century, based?