Prove you've got a top IQ by solving tricky cube-themed maths puzzle

Keeping your noggin busy is known to boost cognitive performance, sharpen memory, and aid focus and attention. Some even reckon that regular brain workouts can stave off the symptoms of dementia.

Brainteaserscome in all sorts of forms, and this particular puzzleis so tricky that it seems only those with a high IQ can crack it.

Although it'll push your brain to think outside the box, by taking on the challenge to solve the problem you'll be enhancing your mind's ability to concentrate on a task, as well as your memory and overall cognitive prowess.

READ MORE: You have the eyes of a sniper if you can spot the cat hiding in optical illusion

READ MORE: You're in the top 30 per cent of people if you find all the pretzels in this brainteaser

One testquestion is proving to be a real head-scratcher for those who struggle with maths, but also for those who consider themselves good at it. The seemingly straightforward question asks people to complete an equation – but it's not as simple as it looks. Let's play!

The issue is that it has left people baffled, with most folk unable to choose between two different answers. So, can you figure it out?

The mathstest question shared on social media features a lorry carrying a number of cubes, but how many? The problem has garnered thousands of comments from people attempting to solve it, with many insisting it can't be cracked.

The images showed the side of the lorry, the back, and the view from the top. From above, you can see 21 squares. From the side, there are 17, and from the back, nine cubes.

READ MORE: You'll need a high IQ to spot four-leaf clover in less than 15 seconds

Many people arrived at the answer of 51, while others believed it could range anywhere from 35 to 5, and someone else guessed 49.

One user wrote: "It's 51. You don't need the top view for calculation. So many replies saying it's impossible to answer and there is incomplete information. Like what is the incomplete info?" While another explained: "The maximum number of cubes could be: 3x4x3 + 3*2*2 + 3*1 = 51 But it is possible some are missing in the center row, which is not reflected in the 3 views."

What do you think? Let us know in the comments below.