This Coffee-Pouring Brain Teaser Is Confusing Everyone, But Can You Solve It?

It may be the caffeinated fuel that gets most of us through every single work day, but this coffee conundrum has left numerous Twitter users scratching their heads.

Twitter user @_herbeautyxo posted a coffee brainteaser in which a jug of Joe is poured into a system of pipes leading to four separate coffee cups. Each pipe leads to a different numbered cup, but which coffee cup will fill up first?

You might want to grab a second mug of the stuff before jumping into this brainteaser.

Some people thought the answer was a no-brainer, but boy were they wrong.

While others thought this puzzle was nothing more than a trick question.