Answer:
You heard me before, yet you hear me again, then I die. Until you call me again.
Being able to interpret the letters on this screen proves that you have this quality.
Golden treasure I contain, Guarded by hundreds and thousands. Stored in a labyrinth where no man walks, Yet men come often to seize my gold. By smoke I am overcome and robbed, then left to build my treasure anew
I weaken all men for hours each day. I show you strange visions while you are away. I take you by night, by day take you back. None suffer to have me, but do from my lack.
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
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?