Answer:
Sometimes imaginary and sometimes real, sometimes they are the closest and dearest person outside the family. Who are they?
What is the end of everything?
What always comes into the house through the keyhole?
It has the biggest wall and is also used when drinking tea.
If you have me, you want to tell me. If you tell me, you don't have me.
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?