Count the number of triangles in the picture below:

Why is 6 afraid of 7?

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?

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

You can hear me, but you can't touch or see me.

What am I?

Replace the question mark with the correct number in the below-given picture?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

If you say my name, I will no longer exist. What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

What is the centre of gravity?