Brain teasers are a brilliant way to test your powers of observation or give your cognitive skills a quick boost.
Whether you're searching for a hidden item or working to decipher a difficult puzzle - there's all sorts of games for players to enjoy.
But there's nothing that will get your heart racing quite like a time challenge.
Although you're welcome to compete with your friends, the key objective in these missions is to beat the clock, and the latest brain teaser has one of the shortest time frames yet as you're not given long to play.
In fact, you've got five seconds to spot the word hidden among a sea of letters if you want to win.
Do you think you're up for the challenge? If so, set your timer at the ready. To complete this game, you must find the word 'Seal' in the photo.
As you'll have noticed, the word 'Zeal' also features, so it is not as straightforward as you might expect. You'll need eagle eyes to spot the hidden word.
If you need a helping hand, remember optical illusions often play with colour contrast to trick your eyes and brain. The question is: were you fooled?
You can also finetune your skills by playing along with similar games. For those who didn't enjoy the wordplay, why not try this number equivalent instead?
The aim of the game is to spot the number 38 in a sea of 58s in ten seconds or less.
Or if you're keen to try something completely different, challenge yourself to spot the blue rubber ring hidden inside this mind-bending illustration. Given the waterpark theme, there's more than a few inflatable toys to check.
Don't worry if you find the game feels more like a visit to the rapids than a swim down the lazy river. We've included the answers, just as we have for this game, which you can view below.
As they say, practice makes perfect, and brain teasers are good challenges to take on.
Not only are the puzzles heaps of fun - especially if you're winning - players can also reap a number of health benefits.
Regular play can improve your problem-solving skills and your memory. The games could even help to reduce your risk of dementia. So, what are you waiting for? You can find more brain teasers to enjoy below.
Did you succeed? Let us know your time in the comment section below
