Answer:
You can catch me but cannot throw me.
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.
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I have branches but no fruit trunk or leaves. What am I?
I am black and white. I have strings I have keys. I make sound without my lips. I make dough with no flour
What made Cyclops quit teaching?