A batsman has a certain average of runs in 20 innings. In the 21st inning, he scores a specific number of runs to raise his overall average by 2 runs. If his initial average was 40 runs, how many runs does he need to score in the 21st inning?

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?