In a Venn diagram, if singers are denoted by a 'circle', clerks by a 'rectangle', and males by a 'triangle', which region represents persons who are male clerks but are not singers, given that the value in the intersection of only rectangle and triangle is 20?

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?