Brain Teasers

It's weightless, you can see it, and if you put it in a barrel it will make the barrel lighter?

The more there is, the less you see. What is it?

What can travel around the world while staying in a corner?

What room can no one enter?

If you have it, you want to share it. If you share it, you don't have it. What is it?

What is easy to get into, but hard to get out of?

What kind of coat can be put on only when wet?

When it is alive we sing, when it is dead we clap our hands. What is it?

Which weighs more, a pound of feathers or a pound of bricks?

What is the last thing you take off before bed?

Which is correct to say, "The yolk of the egg are white?" or "The yolk of the egg is white?"

I look at you, you look at me, I raise my right, you raise your left. What am I?

What question can you never answer "yes" to?

What can fill a room but takes up no space?

I can only live where there is light, but I die if the light shines on me. What am I?