Cool MateIs a mystery vs Problem vs Puzzle
When to use each in English, with meaning, register, and examples.
Is a mystery
Top 2,000 (common)
Problem
Top 1,000 (very common)A1noun
Puzzle
Top 1,000 (very common)B2noun
| Is a mystery | Problem | Puzzle | |
|---|---|---|---|
| Pronunciation | 🇬🇧 //ɪz ə ˈmɪstəri//🇺🇸 //ɪz ə ˈmɪstəri// | 🇬🇧 /["/ˈprɒbləm/"]/🇺🇸 /["/ˈprɑːbləm/"]/ | 🇬🇧 /["/ˈpʌzl/"]/🇺🇸 /["/ˈpʌzl/"]/ |
| Meaning | Something that is not known or understood. | A difficulty or issue that needs to be solved. | A game or problem that requires thought to solve. |
| Example | Her past is still a mystery to me. | Math can be hard, but I will solve this problem. | She spent hours trying to solve the complex jigsaw puzzle. |
| Register | Neutral | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | - | A1 | B2 |
| Part of speech | noun | noun | |
| Collocations | remain a mystery, solve a mystery, still a mystery, is a complete mystery, an intriguing mystery | acute, big, enormous, host, set, be, pose, present (somebody with), arise, come up, crop up, area, spot, behaviour/behavior, problem about, problem for, problem of, an approach to a problem, the crux of the problem, the heart of the problem, complicated, difficult, easy, do, find the answer to, solve, set | crossword, jigsaw, logic, complete, do, put together, book, game, piece, great, perplexing, scientific, crack, figure out, piece together, remain, puzzle about, puzzle of, a piece of the puzzle, the key to a puzzle, a piece in the puzzle, crossword, jigsaw, logic, complete, do, put together, book, game, piece |
| Antonyms | - | solution, answer, resolution | solution, answer |
| Common mistakes | Used with clear information, which contradicts the meaning., Misused in questions where the mystery is actually solved., Confused with 'mystery' as a genre in literature. | 'Problem' is often confused with 'trouble'—these words have slightly different meanings., Some learners may use 'problems' incorrectly with uncountable nouns., Use the phrase 'to solve a problem' instead of 'to fix a problem'. | Confused with 'puzzling' which is the adjective form., Using 'puzzle' as a verb incorrectly; it's primarily a noun., Mispronouncing as 'pu-zal' instead of 'puh-zuhl'. |
| Usage notes | Used to express confusion or lack of clarity. Appropriate in both spoken and written English. Avoid in overly formal contexts. | Use 'problem' in both formal and informal contexts. Avoid using in overly casual situations when a lighter term might fit, like 'issue' or 'challenge'. | This word can be used for both physical puzzles (like jigsaw puzzles) and mental challenges (like riddles). It's appropriate in casual conversation and writing. |
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Frequently asked questions: Is a mystery vs Problem vs Puzzle
What's the difference between Is a mystery, Problem, and Puzzle?
Is a mystery: Something that is not known or understood. Problem: A difficulty or issue that needs to be solved. Puzzle: A game or problem that requires thought to solve.
Which is more advanced: Is a mystery, Problem, and Puzzle?
Puzzle is the highest level, at B2, on the CEFR scale.
Can you show an example of each?
Is a mystery: Her past is still a mystery to me. Problem: Math can be hard, but I will solve this problem. Puzzle: She spent hours trying to solve the complex jigsaw puzzle.
Can I use Is a mystery, Problem, and Puzzle interchangeably?
Not always. Is a mystery, Problem, and Puzzle are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.