Can you count the number of lines in the below picture?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

Why is Saturday stronger than Monday?

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

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

I look at you, you look at me I raise my right, you raise your left. What am I?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

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

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. 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?