Answer:
It is the electronic version of junk mail or a salty meat in a can.
Each of these ends in a kettle full of precious metal and the double variety is quite awesome
Scythe of darkness, Shadow’s light. Guiding eye of thirteenth sight.
What has wings, but can not fly. Is enclosed, but can outside also lie. Can open itself up, or close itself away. Is the place of kings and queens and doggerel of every means. What is it upon which I stand? Which can lead us to different lands.
You throw me out when you want to use me and you take me in when you don't want to use me. Who am I?
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?