A journalist wishes to enter an underground club to expose there wrong doings. When someone approaches the door, they are given a number, and then they reply with a number. The journalist first observed how the system works.

The guard states "twelve" to the first person to arrive in which they replied "six". A second person approaches and the guard tells them "six" and they reply "three." They were both aloud in.

He presumed he had figured out their code so when he approached the guard who said ''ten'' the journalist then said ''five''. The guard immediately slammed the door and he was locked out.

Where did he go wrong?

![](https://steemitimages.com/DQmc4qcVa8E69SJA6H1kSH8fGGQqSe3f3363bHkXWZf6bCn/image.png)
[Source](https://twitter.com/secretdooruk)

There is a grand prize of 0.005 STEEM for the winner and three 0.001 STEEM runner up prizes.

The winner is the first correct answer. After 7 days the runners up will be randomly selected. I will use a random number generator and assign numbers to all correct answers and the three chosen will win (It's a small prize but mainly just for fun). After 7 days I post an answer/identify the correct answer and pay out the rewards.

Please optionally upvote if you like this post or give an answer, have fun!