Brain Teasers
Eluding a Follower
Cryptography
In Cryptography teasers, a phrase or expressions has been encoded in some way (frequently by replacing letters with other letters). You need to figure out the encoding method and then decode the message to find the answer.Cryptography
A woman working for a corporation had learned her employer was selling weapons secrets to an overseas agency. She had gathered some information to pass along to the FBI during an arranged meeting. However, that night, as she left work, she suspected someone from the corporation was following her. She wondered if they could have learned about her meeting, despite her having been so careful. If she was to keep her meeting with the agent, she would need to lose this follower without drawing suspicion. She stopped by a small cafe for a latte; and while she waited, she quickly wrote this message on a napkin:
ADHMF ENKKNVDC. LDDS LD 6O, AQNNJKXM SGDZSDQ 6sg ZMC NZJ, QNNL 8.
She didn't have the time necessary for a more complicated code. At least this would prevent the spy from quickly reading her new plans, while still allowing her to alert the FBI agent. She wrapped the napkin around her coffee cup and proceeded to the designated meeting spot. As promised, the agent was there by the fountain waiting. As she walked by, she carefully bumped into him. She apologized for the apparent error and offered him her folded napkin with the code written on it. She then continued on her route and slipped away on a bus before the corporation's spy could follow.
Assuming he can decipher her code, when and where will the FBI agent meet her?
ADHMF ENKKNVDC. LDDS LD 6O, AQNNJKXM SGDZSDQ 6sg ZMC NZJ, QNNL 8.
She didn't have the time necessary for a more complicated code. At least this would prevent the spy from quickly reading her new plans, while still allowing her to alert the FBI agent. She wrapped the napkin around her coffee cup and proceeded to the designated meeting spot. As promised, the agent was there by the fountain waiting. As she walked by, she carefully bumped into him. She apologized for the apparent error and offered him her folded napkin with the code written on it. She then continued on her route and slipped away on a bus before the corporation's spy could follow.
Assuming he can decipher her code, when and where will the FBI agent meet her?
Answer
Each letter represents the letter right after it. The numbers also represent the next number. Thus, the decoded message is -Being followed. Meet me 7P, Brooklyn theater 7th and Oak, Room 9
The woman successfully alerted the FBI without drawing suspicion. The new meeting took place, and the corporation is currently under investigation.
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