They look simple at first glance, but thousands of people get them wrong every day. Two classic riddles — one about a family, one about a mysterious object — are making the rounds online and proving that common sense is not always enough to crack a good puzzle.
The first riddle reads as follows: “Your parents have six sons, including you. Each son has one sister. How many people are in the family?” Most people instinctively reach for a wrong answer,…
