Case 336: A clear reflection beside the empty display shows a yellow badge. Who wore that item?
Mona
Rana
Malik
Dana
Crime & Detective · Medium
Secret Sleuths: The Number Puzzle Envelope Mystery 336
A complete ten-question detective case set at a innovation fair, centered on the missing number puzzle envelope. Includes observation, timelines, code-breaking, deduction, evidence practice, True/False, and Yes/No decisions.
Case 336: The display sensor changed at 8:45, matching one arrival record. Whose record matches?
Dana at 8:45
Mona at 8:57
Rana at 9:09
Malik at 9:21
Case 336: The mystery code advances each letter by 2. What does the coded clue FGUM mean?
BELL
DESK
GARDEN
CODE
Case 336: Reading the entry list from earliest to latest gives Dana → Mona → Rana → Malik. Which name is second?
Dana
Rana
Mona
Malik
Case 336: Verified photos place Mona at the display hall, Rana at the garden door, and Malik at the information counter. Whose location still needs checking?
Mona
Rana
Malik
Dana
Case 336: 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 336: The entry records show Dana arrived before Malik.
False
True
Case 336: The yellow badge is a useful lead, but investigators still need supporting evidence before reaching a conclusion.
True
False
Case 336: Should the team photograph the innovation fair display before moving nearby objects?
No
Yes
Case 336: Should investigators compare the coded word, the 8:45 log, and witness details before deciding what happened to the number puzzle envelope?
Yes
No