Answer:
I always follow my brother but you cannot see me, only him. You cannot hear him but you can hear me. What are we?
A precious fluid, thicker than water.
I am what remains when nothing is left.What am I?
Do you know what you can hold without ever touching it?
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?