Answer:
I am like thunder in your cranium
A dragons tooth in a mortals hand I kill I maim I divide the land.
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
I start in little but I end in full you'll find me in half and complete.
First you see me in the grass dressed in yellow gay; next I am in dainty white, then I fly away. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic