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

John was piloting a plane behind a car but was never able to overtake it. Why?

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.

What breaks yet never falls, and what falls yet never breaks?

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?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

How many times can you subtract the number 5 from 25?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?