Study the given pattern carefully and select the number that can replace the question mark (?) in it. (16, 4, 4) (30, 5, 15) (8, 2, ?) (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits.)

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?