What is both possible and impossible at the same time?

Can you make four (4) nines (9) equal 100?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

What number should come in place of the question mark below?

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

A police officer was passing by when he saw a guy hiding. He walked up to him and genially asked, "What is your name?"

"Shut up!" the boy responded.

"Where are your manners?" asked the outraged police officer.

"Up that tree," said the boy discourteously, directing to a neighbouring tree.

You're looking for trouble, aren't you?" said the police officer.

"No, trouble is looking for me!" the boy answered solemnly.

Why is the boy behaving like this?

Why did the Girl throw the butter out of the window?

What number when divided in half becomes zero?

All of you like to eat me. I am a five-lettered word. Remove the first two and I turn into an infamous animal. Remove just the first and I become a heinous crime. Remove the first and the last and you can groove on me.

Can you guess who am I?