What is the two lesson you can learn in riddles

You can get creative! it also helps problem solving skills! I also noticed it helps my memory =O I remember the entire green lantern power up,

"brightest day darkest night, no evil shall escape my sight, let those who worship evils might beware my power green lanterns light"

see what I mean??  lol

answer; i believe that the correct answer is (north and south);