Which of the following optical phenomena CANNOT convert

Consider the following statements regarding iqta system:

1. Iqtas were administered by Muqtis.

The Prime minister of England at the time of Independence of India was

Consider the following statements about Rashtrakutas:

1. The posts of the village headmen and village accountant were generally hereditary.

Which is the largest freshwater lake in Uttar Pradesh?

Who was the founder of the Nanda Dynasty?

Who was the spiritual mentor of Amir Khusro?

Identify the ancient Indian site known for its remarkable urban planning and dockyard facilities from the following clues:

Battle of Chach was fought between the Ghaznavid army of Mahmud of Ghazni and the Hindu Shahi army of __________.

__________ was the mother of Mahavira. 

Which ancient Indian city was the capital of the Rashtrakuta Dynasty?