useless trivia: What Word Means: A Substance In The Cell Nucleus?

Questions

Big Mexican food chain, ring ding a ling, making you run for the border!?

Out of the two big cola brands, which one do they sell?

Soft Bun, Pickles, Sauce, Pattie.?

All of their products seem to be prefaced with which 2 letters?

McDonald's 'Iced Tea' is actually this brand?