At first glance, all of the houses in this image look completely identical, but hidden among them is one with a subtle difference.
The puzzle was created by The Professional Snagging Company to test how well the average person can spot small differences, and is trickier than it looks.
To some, the houses all look the same, and only 1 in 10 can find the odd one out without giving up.
The change is small, but once you see it, you’ll wonder how you missed it.
Think you’ve got a good eye for detail?
The challenge is simple; find the one house that’s different, and do it in less than 10 seconds.
If you get stuck, the experts recommend focusing on the finer details.
It might be something as simple as a door handle or window frame being slightly off.
If you look closely, you can see that the 7th house in the third row isn’t quite like the others.
The bottom-left window only has one line, unlike every other house on the grid.
Science has proven that and looking at optical illusions is beneficial for your brain’s health.
Cognitive stimulation improves mental agility and improves your memory recall.
Some have suggested that keeping your brain active can in old age.
The positive stress caused by brain teasers and optical illusions force your brain to become more flexible.
However, the Alzheimer’s Society has warned that nothing is as effective at as healthy living habits.
Smoking, drinking excessive amounts of alcohol, little socialising and low physical activity can all contribute to an .
Any exercise that increases your heart rate – including – help slash the risk of dementia.
Reducing , which are high in saturated fat, have also been linked to an increased rate of heart problems and dementia.
Here are some more brain teasers to keep your mental fitness up.
