If you haven’t had your morning cup of coffee yet maybe get that first before attempting to solve this tricky caffeine puzzle that’s left people stumped.
The brainteaser was shared on Twitter and has left people everywhere scratching their heads to try and figure out the answer.
The image shows a jug of coffee being poured into a group of pipes, all leading to four different coffee mugs.
The challenge is to figure out which of the four cups will get filled up first – number four, five, seven or nine?
The seemingly simple question left many people confused with some thinking all the cups would eventually get the same amount, while others guessed between the mugs.
However, if you look closely you’ll realised the answer is actually super simple. Have you figured it out?
The answer is that only mug five will get any coffee, as the pipes to the other three mugs are all blocked.
The image has been testing people everywhere and has since gone viral with over 2,000 retweets and 4,500 likes.
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