Riddle

To unravel me, you need a key. No key that was made by locksmith's hand, but a key that only I will understand. What am I?

Choose an answer

A.Lock
B.Riddle
C.Puzzle box
D.Cipher
Hint: It's a word with 6 letters, starting with "C".

Answer

Cipher

Why this is the answer

A cipher (secret code) can only be 'unlocked' or understood with the right key to its pattern, not a physical locksmith's key.

This riddle is filed under "What Am I?" Riddles and rated Hard.