The numbers in each set follow a specific logical relationship. (3, 6, 81), (2, 2, 16), (4, 5, ?) Based on the pattern found in the first two sets, find the missing number that should replace the question mark (?) in the third set.

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?