Can you write down eight eights so that they add up to one thousand?

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 ?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What does below pictogram mean?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Can you decipher the two rows to find the hidden word?