PQ is a tangent line to a circle touching it at point T. R and S are two points on the circle such that TR = TS. If ∠PTS = 115°, where P and S lie on opposite sides of the chord/line, what is the value of ∠RST?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?