Best riddles for teens

It can fill a room without occupying space. What is that?

How many seconds are there in a year?

What can go up a chimney down but not down a chimney up?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth I am dissolved into air. What am I?

I'm tall when I'm young, I'm short when I'm old, and every Halloween I stand up inside Jack O Lanterns. What am I?

I sleep when you are awake, I am awake when you fall asleep. I can fly but no feathers to aid my flight. What am I?

A petshop owner had a parrot with a sign on its cage that said "Parrot repeats everything it hears". Davey bought the parrot and for two weeks he spoke to it and it didn't say a word. He returned the parrot but the shopkeeper said he never lied about the parrot. How can this be?

I look flat, but I am deep, Hidden realms I shelter. Lives I take, but food I offer. At times I am beautiful. I can be calm, angry and turbulent. I have no heart, but offer pleasure as well as death. No man can own me, yet I encompass what all men must have.

What is the easiest way to double your money?

There is a box full of marbles, all but two are blue, all but two are green, and all but two are red. How many marbles are in the box?