Answer:
When this is found in a road you are forced to make a decision.
Which weighs more? A pound of iron or a pound of feathers?
I am someone you don't know. Who am i?
I'm a god, a planet, and measurer of heat. Who am I?
Once you know it exists, it no longer exists. What is it?
What sphinxes employ and players enjoy.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?