What is next number in the pattern below:

131 517 192 123 ?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

In the picture given below, can you find out which digit will take place of the question mark?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?