Answer:
What tree that definitely grows does not have a shadow and does not grow fruit?
Which button does not function when being pressed?
My first is nothing but a name; my second is more small; my whole is of so little fame it has no name at all.
What word starts with 'E', ends with 'E', but only has one letter? It is not the letter 'E'.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?