Can you find the key in the picture below?

Why do you find that most of the buildings are deprived of the 13th floor?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

Different lights make me strange by changing me into different sizes. What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Forwards I am heavy, backward I am not. What am I?

Who always enjoys poor health?