Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What question can you never answer yes to?

A bomb exploded in a room full of married couples and no one died. How?

In a kingdom, King George did not allow any citizen to visit the world outside. Also, only a person with proper paperwork was allowed to enter or he was sent back. A wooden bridge was what connected the kingdom to the world. The king had appointed a sharpshooter who would check the every five minutes on the bridge to check. After checking, he would go back to his hut and return exactly after five minutes again. The bridge took 9 minutes to cross.

A merchant was able to escape the kingdom without harming the shooter. How?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

When can we add 2 to 11 and get 1 as the correct answer?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?