The more it dries, the wetter it becomes. Can you tell what it is?
There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.
Can you calculate the distance between the fourth and the first village ?
Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?
What has many keys but can’t open a single lock?
The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM
PS: You may start the number from 0.
What does this mathematical rebus means ?
Can you decipher the two rows to find the hidden word?
You knock a Table over in the library, and suddenly 20 eyes are looking at you.
Can you make four (4) nines (9) equal 100?
Two friends were stuck in a cottage. They had nothing to do and thus they started playing cards. Suddenly the power went off and Friend 1 inverted the position of 15 cards in the normal deck of 52 cards and shuffled it. Now he asked Friend 2 to divide the cards into two piles (need not be equal) with equal number of cards facing up. The room was quite dark and Friend 2 could not see the cards. He thinks for a while and then divides the cards in two piles.
On checking, the count of cards facing up is same in both the piles. How could Friend 2 have done it ?
Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?
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