Crime & Detective · Medium

Junior Detectives: The Number Puzzle Envelope Mystery 131

A complete ten-question detective case set at a book festival, centered on the missing number puzzle envelope. Includes observation, timelines, code-breaking, deduction, evidence practice, True/False, and Yes/No decisions.

10 questions 8 mins General

Question 1 · multiple choice

Case 131: The security sketch marks a silver lanyard beside the cabinet. Which name fits that observation?

Khalid Faris Bader Adel

Question 2 · multiple choice

Case 131: The access log marks the important entry at 8:55. Who arrived at that exact time?

Khalid at 8:35 Faris at 8:45 Adel at 9:05 Bader at 8:55

Question 3 · multiple choice

Case 131: Decode DCI by moving each letter back 2 alphabet place(s). What word appears?

BAG BELL WINDOW CODE

Question 4 · multiple choice

Case 131: The queue record places Khalid first and Adel fourth, with Faris ahead of Bader. Who held position two?

Khalid Faris Bader Adel

Question 5 · multiple choice

Case 131: After matching three people to confirmed location records, only one name has no location match. Which name is it?

Khalid Faris Bader Adel

Question 6 · multiple choice

Case 131: A faint mark is visible on the case holding the number puzzle envelope. What is the best next step?

Wipe the mark clean Let everyone touch it Guess who made it Photograph the mark and protect the area

Question 7 · true false

Case 131: The entry records show Adel arrived before Khalid.

False True

Question 8 · true false

Case 131: Comparing the 8:55 timestamp with the arrival log is a reasonable way to test the timeline.

False True

Question 9 · multiple choice

Case 131: Should visitors pass the possible clue around so everyone can inspect it?

No Yes

Question 10 · multiple choice

Case 131: Is it fair to accuse Bader only because of the silver lanyard, without checking the timeline or any other clue?

Yes No