When continuous quantitative data is classified into overlapping intervals such as 0-10, 10-20, 20-30, ..., where the upper limit of one class is the lower limit of the next, this classification method is known as:

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?