What has to be broken before you can use it?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

I make two people out of one. What am I?

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

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?

If six children and two dogs were under an umbrella, how come none of them got wet?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Which point will the car reach to go out?