Answer:
Five hundred begins it, five hundred ends it. Five in the middle is seen. First of all figures, the first of all letters. Take up their stations between. Join all together, and then you will bring before you the name of an eminent king.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
What do you use to hoe a row, slay a foe, and wring with woe?
What is that you will break everytime you name it?
Always wax, yet always wane: I melt, succumbed to the flame. Lighting darkness, with fate unblest, I soon devolve to shapeless mess.
What is so fragile that saying its name breaks it?