Before Mount Everest was discovered, what was the highest mountain in the world?

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 ?

By what process could you make a 'Tea-Table' into food?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Bay of Bengal is in which state?

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

I look at you, you look at me, I raise my right, you raise your left. What am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Find the number of squares in the below-given picture.