Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Can you name some countries which do not have the alphabet 'A' in them?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

The king of Octopuses has servants who have six, seven or eight legs. The distinguishing characteristics of the servants is that the one with seven legs always lie but the one with either six or eight legs speak the truth always.

One day, four servants meet and converse:

The black one says, 'We have 28 legs altogether.'

The green one says, 'We have 27 legs altogether.'

The yellow one says, 'We have 26 legs altogether.'

The red one says, 'We have 25 legs altogether.'


Can you identify the colour of the servant who is speaking the truth?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

Can you find the thief by just looking at the picture below?