Give two examples each for a solid, liquid and gaseous fuel along with some important uses.

Solid fuels: These are used to cook food in homes. Coal is also used in industries.

Examples are wood and coal.

Liquid fuels: Kerosene is used in stoves to cook food and in lamps and petrol is used as a fuel in automobiles.

Examples are kerosene and petrol. 

Gaseous fuels: These are used in industries, CNG is used to run automobiles.

Examples are natural gas and petroleum gas.