Originally part of an entrance exam for a primary school in Hong Kong, the puzzle is meant to be solved by six year olds within 20 seconds. But that hasn't stopped adults from finding it tricky.

According to the xwordinfo.com database of New York Times puzzles, “rebus” puzzles where punctuation substitutes for letters in the finished grid have run about 20 times in The Times since ...

One parent who was enjoying dinner at a restaurant with their family spotted the puzzle game along with a list of 10 words to look for on a kids’ menu. “Find the following words in the puzzle: ...