What is next number in the pattern below:

131 517 192 123 ?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

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

There are forty elephants and they have forty-fore heads. How can this be possible?

Find out the missing number in the picture attached:

What does this Rebus Picture means ?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

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