Answer:
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go darkness follows me.
I am a ship that can be made to ride the greatest waves. I am not built by objects, but built by minds. What am I?
What building has the most stories?
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?