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 ?

Can you replace the question mark with the correct number?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What does this rebus mean?

O
N
C
E
TIME

Can you count the number of lines in the below picture?

Find the next number in the following series:
6, 14, 26, 98, __?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you find the mistake in the below statement?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?