Solve this puzzle to find out.
This has been making the rounds on the Internet and is said to be a question that six-year-old children had to answer as part of their entrance exam to primary school in Hong Kong.
According to the original posting, children had 20 seconds to find the answer. Can you solve it that quickly?
Need a hint? Try turning the image or your screen around.
This article has been republished from
Note: material may have been edited for length and content. For further information, please contact the cited source.
Facebook comments