The difference between the interest earned on the same principal amount invested under compound interest (compounded annually) and simple interest at the same rate of interest for 2 years is Rs. 52. If the rate of interest is 4% p.a., find the amount invested.

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?