Which alphabet letter is a question?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

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

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you find the missing piece of the Porsche?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

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 ?