Queen Elizabeth organised a royal party.

To Avoid uninvited guest royal family set a password.
Jack (an uninvited person) plan to enter the party. He stand nearby the door.

First guest comes, the security person said 'twelve' and guest replied with six.
Second guest comes , the security person said 'six' and guest replied with 'three'.

Jack thought is enough and he walked to the entry point. The security person said 'eight' , Jack replied smilingly 'four'.
He was immediately thrown out of the party. why ?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

O_er_t_o_

Complete the missing letters of the given word.

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

What number divided by 4 is the same as that number minus 4?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

How many letters are in the alphabet?