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.
What has 88 keys, but can’t open a single door?
I am one small little piece of paper yet sometimes hold lots of value. I am all you need to get in to big events but will cost you. I am an important part of travel. And if lost you're not coming.
You cannot keep me until you have given me. What am I?
I have a lot to say but can't be heard because I can't speak one single word. 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