I have a head and a tail that will never meet-Riddle

Gogo and Jagga were enemies, the rivalry started when both of them started riddling each other. There was always a competition between them for which one of them will ask the trickiest riddle! Let's see what Gogo asked Jagga this time! 
I have a head and a tail that will never meet. Having too many of me is always a treat. What am I?