Refer to the following number series and answer the question that follows (all numbers are single-digit numbers only). Counting to be done from left to right only. 4 7 1 9 0 5 3 8 2 6 1 4 7 9 2 0 3 6 8 5 1 2 7 3 4 How many of the numbers are perfect squares?

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?