A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

How many triangles are there in the picture below?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

What is next number in the pattern below:

131 517 192 123 ?

Why is a river so rich ?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

I have no life, but I can die. What am I?

Identify the hidden meaning behind this picture?

What has one eye, but can’t see?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?