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 sleep when you are awake, I am awake when you fall asleep. I can fly but no feathers to aid my flight. What am I?
found at the back of the book.
The faster you run the harder it is to catch me
I am a chair that can move. What am I?
Why was the cook arrested?