You don't burn carbs, you only burn calories and fat.

to work all night

To burn the midnight oil means that you are staying up late on a consistent basis, usually working. It is a phrase that originated in 16th century England.

The television show Burn Notice does not have a pot office address to receive fan mail. They do however have social media sites and a web page they can be contacted through.

Basically, it is extremely difficult to get solids to burn. It is even somewhat difficult to get liquids to burn! Gasses burn. Heat turns liquids or solids to gasses and then they burn. In a car engine, fuel injectors turn the gasoline into a fine spray which quickly evaporates into a gas. It then burns.

Coal does not burn. A fire heats coal. Then coal gives off gasses. The gasses burn. Then the coal gets hotter. As the coal gets hotter, some of the carbon in the coal turns to gaseous carbon, some of the carbon does not, those flakes of carbon become soot. The carbon gas burns. Some stuff simply is left.