How can one talk without saying a single word?

Why is 6 afraid of 7?

What can go through glass without breaking it?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What can go up a chimney down, but can’t go down a chimney up?

Who can jump higher than a Mountain?

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

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?

Count the number of triangles in the given picture.