What is next number in the pattern below:

131 517 192 123 ?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

I am white when I am dirty, and black when I am clean. What am I?

Be active and find the killer in the picture Riddle below.

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?