A "simple" math question intended for five to seven year old children has baffled adults around the globe.
No one can seem to agree on an answer to the challenging question that requires kids to study a pattern and fill in the missing numbers.
Twitter user Mmatigair shared the image of what sounded like an easy task, but proved to be quite the conundrum.
The post was captioned: "Apparently, this math question appeared in an exam for grade ones in Singapore.