In a laboratory experiment, the square of a specific constant (?) increased by the cube of 7 is found to be equal to the square of 31 minus 42. What value will come in place of the question mark (?)?

Mahatma Gandhi's last fast unto death in 1948 was primarily against which of the following?

What was the primary meaning of 'Swaraj' as popularized by Mahatma Gandhi during India's independence movement?

What was one major impact of India’s independence on its economy?