मोरक्को का यात्री इब्न बतूता किस दिल्ली सुल्तान के शासनकाल में भारत आया था?

Who built the Shahi (Royal) road during his rule, which was later renovated and renamed the Grand Trunk Road by the British?

In which year was the Bahmani Sultanate established?

The 'Alai Darwaza', the entrance gate of Qutub Minar, was constructed during whose reign?