What always comes into a house through the keyhole?

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

( ) + ( ) + ( ) = 30

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

What Time Should the last watch show in the below figure?

Can you identify if it's a murder or a suicide ?

The centre of the third figure is empty. What digit should fit inside?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

What does the below image rebus riddle means ?

With the help clues provided in the image, can you find the 5 digit key?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)