Yes a resturaunt can have both Dr. Pepper and Coke, but it depends on what the resturaunt chooses to sell as to whether they will sell both Dr. Pepper and Coke. After all people have said that Dr. Pepper and Coke taste very similar. Bagshad :)
Yes there are, for example: "Nations," is a big burger place that sells lots of good yummy things. There are many more but put your head into it and think of another. LOL JK THINK OF THEM YOURSELVES!!!!