The Captain immediately called five suspected crew members and asked each one where and what he was doing for the last 15 minutes.
The Filipino cook (in a heavy overcoat): I was in fridge room getting meat for cooking.
The Indian Engineer (with a torch in hand): I was working on generator engine.
The Sri Lankan seaman: I was at the mast correcting the flag which was upside down by mistake.
The British Radio officer: I was messaging to company that we are reaching the next port in 72 hours from now, that is Wednesday morning at 1000hrs.
The British navigation officer: I am on night watch, so I was sleeping in my cabin.
The captain caught the liar.
So, who is the thief?