Brain teasers can improve your memory, stimulate creativity, and sharpen your concentration - but that doesn't mean they can't be lots of fun as well. Equal parts stimulating and entertaining, they're a brilliant way to kickstart your weekend.
Luckily, we've got a whole host of puzzles you can play if you're looking to put your cognitive skills to the test.
The bravest among you may even like to challenge your friends and family to beat your score - if you can handle the heat. Are you ready for a challenge? Why not start as you mean to go on and try a mind-bending game?
Courtesy of 7-Second Riddles, this hospital-themed puzzle is not for the faint-hearted. You've only got eight seconds to discover the thief hidden in the busy scene.
Whether you're a puzzle pro or a newbie riddler, you'll need to keep your wits about you to pass this test.
Unlike other games that challenge players to look for a specific item, this time you've got to find the mystery clue that will help you answer the question.
Did you spot it? Here's a hint: you're looking for a valuable item placed somewhere it shouldn't be. Once you've spotted the item that's out of place, it's easy to work out who the thief is.
Stop scrolling now if you're like to catch the culprit red-handed.
For everyone else, we've shared the answer above - so you can compare your answer.
Look carefully at the woman standing closest to the patient, and you'll spot a watch hanging from her wrist. It looks as though she's placed the jewellery upside down in an attempt to snaffle it.
Like we said, this is no straightforward puzzle. If you enjoyed this game, there are plenty more where it came from.
For your next challenge, why not try to guess who is the real mum of the baby in this illustration?
Or if you prefer an old-fashioned spot the difference, we've got one of those too.
How did you get on with today's brain teaser? Let us know in the comments below