Careful Study of the Vedas

Q. Which of the following two rivers find mention in the Rig Veda?

1. Beas
2. Krishna
3. Sutlej
4. Tapi

Q. The Rig Veda mentions a dialouge between a sage and two rivers. What is the name of this sage?

1. Brihaspati
2. Vishvamitra
3. Sukra
4. Gautama