Can you solve the mystery?
A precious diamond was stolen from the museum at midnight. The security cameras were disabled, but the motion sensors were still working. Three people were in the building: the janitor who was cleaning the second floor, the security guard who was in the control room, and the curator who said she came back to get her phone. The diamond case shows no signs of forced entry, and only authorized personnel have the access code. Who stole the diamond?
Test your detective skills with these brain-teasing mysteries