पानी से भरे बर्तन में सिक्का रखने पर वह अपनी वास्तविक स्थिति से थोड़ा ऊपर उठा हुआ प्रतीत होता है, इसका क्या कारण है?

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?