I contain information without form, I can be encrypted or clear, and I travel in silence. What am I?
Category: Science · Difficulty: medium
Hint: Think about how data moves through channels.
Answer
A digital signal
Explanation
A digital signal encodes data, while documents are physical, voice messages are analog, and notes are textual.
This is a medium science riddle — a moderate challenge for most people. The answer is A digital signal.
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