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A cipher is a simple method of modifying messages to make them unreadable except to readers who know the key. Common ciphers are Caesar, Vigenere, Atbash, and several types of substitution cipher. Other ciphers include polygraphic ciphers such as Playfair and Foursquare and numerical ciphers such as Polybius and Nihilist. Cipher puzzles sometimes make use of data encodings like Morse, Binary, or Base64.

4 votes

Eternal Bond | decrypt the message

Far from solution yet:
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2 votes

Same Riddle Different Answer: I am both lock and key - who am I?

Considering that you used: Enter! Small or large, as the case may be I'll assist you - it's easy! - I'm both lock and key
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0 votes

What's for dessert?

Partial: An element, a blue liquid you breathe. The end of a sentence. wgpz tzggjr wgvxf bmzzi mzy It's three til' 4, plus forty more.
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2 votes

Riddle Number Six

Further to the Morse code translation done by @OmegaKrypto: Regarding the chessboard:
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9 votes

Scientist E-mail

The second phrase is a base64 text which says: The two scientists names are anagrams: Furthermore: Based on the findings of @betcheg about the second phrase and the assumption that we are tal …
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4 votes

The riddle of no sense

Partial answer: The hint: The puzzle
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4 votes
Accepted

Who is John's favourite painter?

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4 votes

The princess' journey came to a crossroad

Partial answer, top right To avoid confusion I removed a guess which was wrong.
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1 vote

My Grandpa's Box #1

Partial (updated):
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