A letter is delivered blank but the envelope has writing on it. How was the message sent?

Category: Mystery · Difficulty: medium

Hint: Look where messages might be hidden besides paper

Answer

The message was written on the envelope

Explanation

Writing on the envelope itself can carry the message if the letter inside is blank.

This is a medium mystery riddle — a moderate challenge for most people. The answer is The message was written on the envelope.

More Mystery riddles

All Mystery riddles · Riddles with answers · Home