A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

Count the number of triangles in the given picture.

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

What has many keys but can’t open a single lock?

Why is the Hole below a Lock?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

Solve the mathematical equation in the picture below.