Best difficult riddles for teens with simple answers

I am only useful when I am full, yet I am always full of holes. What am I?

I am a fruit. Remove my first letter, it's a crime. Remove my first and last letter, it's a kind of music. What do you think am I?

How do you make an egg laugh?

There was a plane crash every single person died. Who survived?

Poke your fingers in my eyes and I will open wide my jaws. Linen cloth, quills, or paper, I will devour them all. What am I?

What do polar bears eat for lunch?

What am I?

I take what you receive and surrender it all by waving my flag. What am I?

What goes up and doesn’t come back down?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?