Cyrus walked through the third door and went into a damp passageway. Suddenly, Cyrus found a big bug on the floor. "Damn!" Cyrus stepped on it and the bug died. After a while, Cyrus arrived at a small room. Inside the room was a huge robot that wasn't working. Cyrus noticed a small hole on the robot. He tried putting the totem, and surprisingly, it fit. The robot started moving, and murmured something:


There was a number keyboard on the robot's belly. What should Cyrus type in?





5-digit number


2 Answers 2


Removing hyphens gives:

1 | 0100 | 0101 | 0010 | 1000

which is

Decimal: 83240

As it's not the D then maybe the H?

  • 1
    $\begingroup$ You are correct! It is hex! $\endgroup$ Commented Mar 7, 2019 at 10:34

The answer appears to be


This is done by a direct binary-to-decimal conversion of each number between the dashes, as per the #computer tag, as well as the #decimal hint

  • $\begingroup$ It seems unlikely that that's the whole story, given e.g. that there's a 0 and a 00. $\endgroup$
    – Gareth McCaughan
    Commented Mar 6, 2019 at 12:36
  • $\begingroup$ all too true. But getting the ball rolling first $\endgroup$
    – Kryesec
    Commented Mar 6, 2019 at 13:35
  • $\begingroup$ @Kryesec You're close! $\endgroup$ Commented Mar 6, 2019 at 14:57
  • $\begingroup$ The hyphens doesn't mean anything. Since the robot was murmuring, it said things choppily. $\endgroup$ Commented Mar 6, 2019 at 14:58
  • $\begingroup$ Just Binary to Decimal gives 83240 ? $\endgroup$
    – Smock
    Commented Mar 6, 2019 at 16:42

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