"Mr. Smith had four daughters" is a viral riddle that has everyone stumped. Give it a try to test your skills!
Try to Solve the Viral “Mr. Smith Had 4 Daughters” Riddle
If you’re active on Facebook or other social media, there’s a chance you’ve seen a popular riddle or two going around while surfing. But the ones that go viral and get everybody talking are some of the trickiest around. Case in point: the “Mr. Smith had four daughters” riddle. Just when you think you’ve got the answer, this brainteaser throws you for a loop. It trips up even the sharpest minds!
Below, we’ve got the challenging riddle in full, along with the answer and an explanation. Read on to find out the “Mr. Smith had four daughters” riddle, test your logic skills and then see if your reasoning was correct (no cheating!).
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The “Mr. Smith had four daughters” riddle

The riddle goes like this: Mr. Smith had four daughters. Each of his daughters has a brother. How many children does Mr. Smith have?
This is a deceptively tricky riddle! If your first thought was that Mr. Smith has eight children, you’re not alone. Lots of people think that each daughter has one brother, making four daughters and four brothers, which equals eight children. But nope, that’s not right! It may seem like a math riddle on the surface, but this head-scratcher is actually all about reading comprehension.
The answer to the “Mr. Smith had four daughters” riddle
The answer to the riddle is … five. Mr. Smith has five children. Each of his daughters has a brother, but they all share the same brother. Therefore, four daughters plus one brother equals five children. Grammar nerds might have gotten this one right before math-equation lovers!
More versions of the “Mr. Smith had four daughters” riddle
Of course, it’s called the “Mr. Smith had four daughters” riddle, so you could interpret the past tense had in one of two ways:
- Interpretation No. 1: Mr. Smith had four daughters, meaning four daughters were born to him.
- Interpretation No. 2: Mr. Smith used to have four daughters, but now has none. In that case, he might have no children or just one child (the brother).
The more commonly accepted interpretation is the first one: Mr. Smith has four daughters and one son—five children in total. No matter how you puzzle it out, playing with the possibilities is half the fun (and also a great little workout for your brain).
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