When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table. On pressing the play button, Sherlock hears the message 'I have committed sins in my life and now I offer my soul to the great Lord' and followed a gunshot Sherlock smiles and informed the police that's its a murder.

Why did he think so?

why number 8549176320 is one of a kind?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

There was a strange boy who was born before his father. How can this be possible?

I’m tall when I’m young, and I’m short when I’m old. What am I?

A Detective reviewed the information they had on the case so far.

A lady named 'Caterina' was found shot and they already had a list of suspects - Ankit, Tarun, Harish, Manoj and Manish.
The killer is a fan of challenges him by leaving notes ad various places.
* The first was found in a toilet room.
* The second was found in an art room.
* The third was in a restroom.
* the fourth in an underwater room.
* The fifth at the no-smoking room.

All of the notes read the same thing, 'The clues are where you find the notes.' Yet, nothing was found at any place the notes were.
Detective the genius, immediately solved the case.
Who was the killer?