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In details

Challenge 36


Who did not pay the entrance?

Difficulty level:

Four friends go to the museum and one of them enters without paying. An inspector wants to know who was penetrating him:

"I didn't go," says Benjamin.
-– It was Pedro, says Carlos.
-– It was Carlos, says Mario.
-– Mario is not right, says Pedro.

Only one of them lied. Who did not pay the entrance?