Try Your Hand at the Viral Puzzle Taking U.S. High Schools by Storm
In your opinion, what number should be filled in after THIRTEEN in the image below?

 

 

Answer:
The rule here is that the letters in the vertical column must repeat the numbers in the horizontal row. Therefore, the English word for the next number must contain the letter R. Additionally, when reviewing the previous numbers, we see that non-repeated numbers are chosen, always opting for the smallest possible number.

The smallest number with the letter R is 4 (FOUR). This is the answer to the puzzle.