You have high IQ if you can figure out brainteaser using logic and reasoning While some people can solve brainteasers within seconds, others have to sit down and read the puzzle over and over to try to figure it out.
"During one such sermon, he announces that he has placed a mark upon the foreheads of some of the monks while they slept at night.
Finally, on the fifteenth day, precisely those monks who bear the mark are absent.".
Originally shared on the AskReddit thread, it starts: "A monastery has 100 monks, all of whom have taken vows of silence.
He further says that the day a particular monk figures out that he has a mark, he should stop coming to the daily sermons.
