I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What jumps when it walks and sits when it stands?

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?

What has one letter and starts with an E?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

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

The more you take me, the more you leave me behind.
Who Am I?

I don't get anymore wetter, no matter how much rain falls on me.

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.

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?