This morning when you opened your eyes you found yourself in a room that does not belong to you. You tried to remember how you got in here but in vain. You tried to open the door and walk out but in vain because the door is locked. You sat down for a while thinking what to do when you suddenly hear a voice from the speakers placed in the top corner of the room. The voice said, ‘Solve all riddles in order to collect 10 hidden numbers and escape the room’. This was repeated a couple of times and then there was dead silence in the room. You really have no other choice except to do what the voice demanded from you.