The afternoon classes in a school begin at 2:00 P.M. and end at 4:52 P.M. There are four afternoon class periods with a 4-minute break between consecutive periods. What is the duration of each class period in minutes?

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?