I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Can you name four days which start with the letter 'T'?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

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 ?

Count the squares in the matchstick puzzle below?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

What number do you get when you multiply all of the numbers on a telephone's number pad?