Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

I travel all around the world but always stay in the corner. What am I?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

Can you spot the hidden girl in the picture below?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

Using Only Five 5's and any mathematical operator make sum as 37

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

The Little ant seems to be always confused. Do you know why?