Chand-Pradyota was the ruler of which ancient republic?

Which was the first capital of ancient Mahajanapada Magadh?

Which one of the following rulers of Magadha was the contemporary of Alexander, the Great?

Champa was the capital of which Mahajanapada?

Which initial ruler of Magadha killed his father for enthroning and also was killed by his son for the same reason?

By whom the first republic of the world was established in Vaishali –