Riddle #135

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

What type of bear is toothless?

The more you take, the more you leave behind. What am I?

When it comes to me, you go on red and stops on green. What am I?

What has a tongue, cannot walk, but gets around a lot?

This old one runs forever, but never moves at all. He has not lungs nor throat, but still a mighty roaring call. What is it?

What is the ancient invention that allows people to see through walls?

I sometimes come in a can but I'm not food. I sometimes come in a bottle but I'm not a beverage. I come in different colors but I'm not a rainbow. I'm sometimes used with canvas but I'm not a tent. I'm used with a brush but I'm not toothpaste. What Am I?

What has only two words, but thousands of letters?

What is as light as a feather but even the strongest man in the world can’t hold it for long?

What is as light as a feather but impossible to hold for several minutes?