Who was the first Muslim ruler to formulate the 'theory of kingship' similar to the 'theory of divine right of the kings'?

Who was the first ruler of the Slave Dynasty?

Who of the following was the first woman ruler of medieval India?

On the death of which Muslim ruler a historian said ‘the king was freed from his people and they from their king’?

Who among the following Sultanate rulers was of Afghan origin?

Who was the last ruler of the Tughluq dynasty of the Delhi Sultanate?