Answer:
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
Someone walked into a room and you heard a crash! Someone died. What happened?
Who is it that rows quickly with four oars, but never comes out from under his own roof?
What dress does everyone have, but no one wears?
I have one, you have one. If you remove the first letter, a bit remains. If you remove the second, bit still remains. If you remove the third, it still remains.
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?