There were two guys. one from North korea and the other from South Korea. They had to sign a contract.
The guy from North Korea writes the contract and sends it by post having the contract locked in a box. The box that has got a padlock. The guy from South Korea has to sign the contract.
HOW CAN HE DO IT??read the follow conditions below
1) Both of them are to be the only ones to know about the contract and its details.
2) They cant leave their countries to sign the contract.
3)Neither the padlock nor the box can be broken.
4)The key cant be sent over. He must be the only one to have the key.
I fucking cracked my head over that question when my friend asked me before my BSOM test. OMG. what a crucial period to ask an IQ question. anw there is a solution. tmr i post the answer. haha. good luck