Can you find out which number multiplied by itself will give the output as 12345678987654321?

What will you call your mother's brother's brother-in-law?

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?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

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

How can you tell a raw egg from a hard-boiled egg?

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

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?