Answer:
What can you throw but not catch?
Always wax, yet always wane: I melt, succumbed to the flame. Lighting darkness, with fate unblest, I soon devolve to shapeless mess.
A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?
Twigs and spheres and poles and plates. Join and bind to reason make.
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
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?