Answer:
What letter comes next: O T T F F S S ?
What do you use to hoe a row, slay a foe, and wring with woe?
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever.
Double my number, I'm less than a score. Half of my number is less than four. Add one to my double when bakers are near. Days of the week are still greater, I fear.
This thing all things devours: Birds, beasts, trees, flowers; Gnaws iron, bites steel; Grinds hard stones to meal; Slays king, ruins town, And beats high mountains down.
I have two bodies joined together as one. When standing still I run and run.