Mobail phone.
I have many tongues, and must be fed. Restrain me not, and I will spread. I could save you, or make you dead, it all depends on how I'm fed. Who am I?
I can be red or green or yellow. I'll help you stay a healthy fellow. Inside, I am white; I do not emit light. But if you look just right, I hold a star. What am I?
