I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

If two's company, and three's a crowd, then whats four and five ?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

Can you divide the below-given shape into four equal and identical pieces?

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Count the number of squares in the picture below.

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

How do you go from 98 to 720 using just one letter?