If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

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?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

What time is it when an elephant sits on a fence?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

Can you count the number of triangles in the given picture?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

Can you count the chocolates in hand?