Answer:
What can be opened but cannot be closed?
A time when they're green. A time when they're brown. But both of these times, cause me to frown. But just in between, for a very short while. They're perfect and yellow. And cause me to smile.
What can't you eat for breakfast?
Give it a toss, and it's ready, but not until it's dressed. What is it?
A fruit on a tree. A tree on a fruit.
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around
Food
Animal
Difficult
Easy
Funny
Kids
Logic
What am I?