What has to be broken before you can use it?

What always comes into a house through the keyhole?

Rumel, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:

710 57735 34 5508 51 7718

Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Can it be possible to build a house that has all its four walls facing towards the South?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

How many times in a given day, minutes and hour clock comes in a straight line ?

What can go through glass without breaking it?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?