Which Magadha ruler was known as 'Seniya'?

Which dynasty did rule over Magadha after Nanda Dynasty?

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

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

Chand-Pradyota was the ruler of which ancient republic?

Which of the following rulers merged Avanti in the Magadh Empire after the victory?