In which direction should the missing arrow point?

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

Can you spot the hidden girl in the picture below?

Why did the Girl throw the butter out of the window?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

A man dies of old age on his 25 birthday. How is this possible?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?