Answer:
What surrounds the world, yet dwells within a thimble?
What binds two people yet touches only one?
Sleeping during the day, I hide away. Watchful through the night, I open at dawn's light. But only for the briefest time, do I shine. And then I hide away. And sleep through the day.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat. And your heart grow cold. I visit the weak, but seldom the bold.
There is a puzzle which can be asked all day with a different correct answer each time. What is the puzzle?
Said to have fifty shades
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?