It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Can you write down eight eights so that they add up to one thousand?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Which Burger Is Different in below image?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.