In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.
The centre of the third figure is empty. What digit should fit inside?
What three numbers, none of which is zero, give the same result whether theyâ€™re added or multiplied?
You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?
Decode below three cipher riddles:
26 L of the A
7 D of the W
1000 Y in a M
You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?
If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
Which fur should we be getting from the Lion?
In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?
An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?
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 ?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki