Look at the picture and find out which square is not linked with any of the other squares.

If 21x = 79x, what is the value of x?

Using Only Five 5's and any mathematical operator make sum as 37

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

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?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

Find the hidden tiger in the given optical illusion ?

In the four images below, can you find the odd one out?