Brainteasers are a fantastic way to stretch your cognitive ability and perception skills.
Said to help improve memory and wake up your brain ready for a productive day, they work by challenging your ability to spot hidden anomalies in busy images, or objects that are tricky to spot at first glance.
The latest puzzle from FreshersLive asks you to find the number 8881 in a sea of 8831s.
Even worse, there's a time limit of just 12 seconds - so you're really up against the clock.
You'll need to really observe and analyse the picture so you can spot the number, but remember, there's a seriously strict time limit when it comes to this brainteaser.
The number is really well disguised, making it a mind-boggling feat. For some people, their eye will be instantly drawn to where the anomaly is - but for others, it'll be more of a struggle to find the odd number out.
We'd suggest breaking it down into sections, tracing each part with your eyes quickly so you can gauge where the different number is. But make sure you're concentrating, otherwise, it may just pass you by.
Be creative - sometimes, the solution to a brain teaser requires out-of-the-box thinking.
Have you managed to spot the number? It must have been about 12 seconds by now!
Don't scroll down any further unless you want to know the answer.
Solving brain teasers takes practice, so don't beat yourself up if you can't crack the problem immediately.
Did you manage to spot the 8881? It was seriously difficult, wasn't it? You may have spotted it if you started on the left-hand side and worked your way down each column - but some people's eyes would have just glazed over the number regardless.
If you keep practicing, you're sure to become a better problem solver over time and you'll be able to spot the odd one out in no time.
Did you manage to spot the odd number out? Let us know in the comments.
