What month of the year has 28 days?

When 99 is considered higher than 100?

During which month do people sleep the least?

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 count the number of lines in the below picture?

Why Wine Glass Stem is so long?

What does this below rebus puzzle mean?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

I have Rs.50 and I spend it in the way as below.

If it took eight men ten hours to build a wall, how long would it take four men to build it?