Case 028: A clear reflection beside the empty display shows a silver lanyard. Who wore that item?
Nadia
Dalia
Dana
Leena
Crime & Detective · Medium
Sharp Eyes: The Number Puzzle Envelope Mystery 028
A complete ten-question detective case set at a reading competition, centered on the missing number puzzle envelope. Includes observation, timelines, code-breaking, deduction, evidence practice, True/False, and Yes/No decisions.
Case 028: The display sensor changed at 8:15, matching one arrival record. Whose record matches?
Leena at 8:15
Nadia at 8:00
Dalia at 8:30
Dana at 8:45
Case 028: The mystery code advances each letter by 1. What does the coded clue EFTL mean?
NOTE
DESK
GLASS
CAMERA
Case 028: Reading the entry list from earliest to latest gives Nadia → Leena → Dalia → Dana. Which name is second?
Nadia
Dalia
Leena
Dana
Case 028: Verified photos place Nadia at the north entrance, Dalia at the ticket desk, and Dana at the main staircase. Whose location still needs checking?
Nadia
Dalia
Dana
Leena
Case 028: Two accounts disagree about when the number puzzle envelope disappeared. Which action would best test them?
Compare both accounts with timestamps
Choose the more exciting story
Ignore both accounts
Ask them to copy each other
Case 028: The entry records show Nadia arrived before Dana.
False
True
Case 028: Seeing a silver lanyard proves the wearer took the number puzzle envelope, so no other evidence is needed.
False
True
Case 028: Should the team photograph the reading competition display before moving nearby objects?
No
Yes
Case 028: Should investigators compare the coded word, the 8:15 log, and witness details before deciding what happened to the number puzzle envelope?
Yes
No