What is it?
Maths Riddles is a set of more than 35 number puzzles we wrote ourselves: find a number from its clues, work out ages and prices, continue a sequence, count squares on a grid or race a snail up a wall. They range from warm-ups to genuinely clever puzzles, and each has a hint and a worked explanation.
Who is it for?
Students from about class 5 upwards, maths teachers looking for a starter, parents doing homework help, and adults who enjoy number puzzles.
How to use it
- Read the riddle in the big box. The line above it shows its number, how many riddles there are and how many you have solved (✓ means this one is solved).
- Type your answer in the box and press Check (or Enter). A right answer shows Correct! 🎉, the answer and a short explanation.
- Stuck? 💡 Hint gives a clue; 👀 Answer shows the answer and why it is right.
- Move on with Next ▶, go back with ◀, or jump anywhere with 🔀 Random. Choose Not solved at the top to skip the riddles you have already cracked.
- Send the riddle (without the answer) to a friend with Share on WhatsApp or Copy. Open See all riddles with answers for the full list.
Worked example
A classic type in the set: a snail climbs 3 m up a 10 m wall each day and slips back 2 m each night. It does not take 10 days: after 7 days and nights it is at 7 m, and on day 8 it climbs the last 3 m and is out, so the answer is 8. The explanation under the answer walks through steps like these.
- Draw a picture or a small table: most maths riddles become easy on paper.
- Work backwards when the riddle tells you the end result.
- Check your answer against every clue before pressing Check.
Errors and how to fix them
- “Your answer…” shown in red: you pressed Check with an empty box. Type a guess first.
- “Not quite. Try again, or take a hint.” with the right number: number answers are checked by comparing the numbers in your answer with ours, in any order. Units and currency (kg, km/h, ₹, years) are optional, but an extra number in your answer (for example a working step) makes it fail. Type only the final answer.
- Two-number answers: “12 and 8”, “8, 12” and “8 12” are all accepted.
- Large numbers: write 1000 or 1,000; both work.
- “You have solved them all! 🏆”: with Not solved chosen there is nothing left. Switch back to All to play them again.
- My ticks and solved count are gone: progress is saved only in this browser on this device. A private (incognito) window, clearing site data, or another phone or browser starts from zero.
Open the tool: Maths Riddles
Still stuck?
Contact support. Tell us which tool or page you were using, what you tapped, what you saw, and your phone or computer and browser (for example: Android phone, Chrome). We reply by email.
Questions, or an error not listed here?
Tell us in the comments: what you were doing, the exact message you saw, and your device and browser. We read every comment and add new fixes to this article.