Brain teasers are a great way to pass the time!

They help keep your brain alert and make you see things a different way.

However this viral brain teaser is dividing the nation when clearly there is a definite answer.

Have a look and tell us what you think.

We will leave the correct answer at the very bottom.

Good luck!

Scroll down to see the answer

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Okay so here we go.

The correct answer is 5.

At first glance you may think it’s 9, however upon closer inspection you can see that 9 is blocked at the bottom.  4 could also be an option, if it wasn’t for the fact that the pipe for 4 is blocked at the very beginning.  While we’re at it it’s worth noting that 7 is also blocked in the middle.

What do you think of this clever brain teaser?

Let us know in the comments.