Easy clean riddles for teens

My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place.

What has a head and a tail, but no body?

Born of water, I drown in water. A blood-thirsty beast you can barely see. What am I?

When does Christmas come before Thanksgiving?

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

I have a bed but I do not sleep. I have a mouth but I don't eat. You hear me whisper, but I never talk. You can see me run, yet I never walk. What am I?

What room do ghosts avoid?

If a green man lives in a green house, a purple man lives in a purple house, a blue man lives in a blue house, a yellow man lives in a yellow house, a black man lives in a black house. Who lives in a White house?

Four cars come to a four way stop, all coming from a different direction. They can't decide who got there first, so they all entered the intersection at the same time. They do not crash into each other. How is this possible?