You'll need a high IQ to find hidden animal in pile of bananas in just 19 seconds

Fancy yourself as the family brainbox? Try your hand at this seemingly impossible brainteaser.

Not only are puzzleslike this a brilliant way to keep the kids entertained or pass the time on a lengthy journey, but research also suggests they can boost your cognitive abilities, including concentration, attention, and even memory.

They're also linked to surges in dopamine, so you might notice a lift in your mood (especially if you crack the answer). However, this brainteaser isn't for the faint-hearted, and only those with a high IQ will be able to solve it in less than 15 seconds.

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If you reckon you've got eagle eyes and a sharp mind, you should be able to solve this in no time. Ready? Let's play!

In the picture above, you'll spot a sea of delicious bananas, but hidden amongst the piles of yellow fruit is an animal camouflaged in plain sight. So, just how quickly can you spot it? Get your stopwatch set and... go!

We're not going to drop any hints for this one, in fact - we're not even revealing what type of creature you need to find. If you need a hand scanning through the bananas swiftly, you can always try zooming in on the image on your mobile.

Already throwing in the towel, or reckon you've cracked it? Scroll down to the end of the article to find out the answer. If this fruity challenge was a piece of cake for a mini Einstein like yourself, don't fret, we've got another puzzle to test your brainpower (we wouldn't want you getting too smug after beginner's luck, after all).

For this one, you'll need to be a technical whizz with a knack for words. If you're a fan of watching Countdown on a lazy Sunday, you might have a bit of an edge with this one.

All you need to do is guess the correct password using the leftover letters. We know the word starts with I, finishes in N, and has 'AT' as the sixth and seventh letter. Remaining are the letters N, V, N, O, I, O. For those wanting to really stretch themselves, try setting a timer for just 20 seconds.

You can discover the correct password here, and try our other brainteasers and puzzles. For a real tough challenge, check out the Government Communication Headquarters' (GCHQ) 'family-friendly' test which can only be solved by those with the nimble mind of a spy. 007, you're needed.