The Sultans of which dynasty ruled the country for the longest period?

Which dynasty of Delhi Sultanate ruled for the shortest period?

Which period is called the era of “the rule of the Forty” in the history of Delhi Sultanate age?

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

Who was the first ruler of the Slave Dynasty?

Which of the following Sultans introduced “Market Reforms”?