Indo-Greek ruler whose coins bore Krishna and Balaram

Chand-Pradyota was the ruler of which ancient republic?

The earliest extant coins of India were of –

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?

Name the brave Indian King whom Alexander defeated on the bank of river Jhelum.