The Brilliant Community has been contributing interesting problems which are shared for everyone to enjoy. We have noticed a steady increase in the quality of problems that have been written up, which is much appreciated by the other members.

Here are some pointers to make your problems stand out:

- Simplify your statements and state them precisely. Do not try to be tricky.
- Use clear sentences and statements. Check your punctuation and grammar.
- Add a relevant image which helps to attract attention.
- Choose a title which reflects the content of the problem.
- Read other interesting problems and think about what made them interesting to you, and how they were put together.
- Share something unique and fun. Interesting and thought provoking problems tend to get more likes and shares.
- Write a solution, which allows others to learn from you. This also helps you to ensure that the problem is correctly stated.
- Add the (correct) topic and level, which provides context about your problems.
- Avoid any ambiguity; define uncommon terms.
- Present your math equations clearly. If you do not know Latex, you can always handwrite the problems, take a photo of it and upload the image. For example, Find Area Of Shaded Portion.
- Preview to ensure that your problem appears correctly. Read through your problem before hitting Post.
- Edit the problem as you respond to clarifications or disputes. Delete it if necessary.
- State the numerical constants that you used. Use typical values.

Examples of problems that the community liked:

Algebra: There Are Trains That Operate In The Himalayas?

Combinatorics: Saving The City, Destroying Public Property, Advancing Scientific Knowledge. All In A Day’s Work

Number Theory: My Calculator Says It Is True

Geometry: Particular Pentagon Point

Calculus: Spiders Perform This Cool Trick With Their Webs

Mechanics: Poor Bug, Will It Ever Succeed

Electricity and Magnetism: Lightning Can Hurt You

Computer Science: Knights And Knaves, Another Truth And Liar Problem

## Comments

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TopNewestThese are excellent pointers. I hope that Brilliant will continue to push for quality of problems, but of course it depends on the Brilliant Community to keep up with the excellence. Problems should be clearly and well worded, and answers should be accurate and unique. Good peer review is a must for Brilliant to succeed in its goals. – Michael Mendrin · 2 years, 10 months ago

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Yay, my problem for Mechanics! Thanks! – Anish Puthuraya · 2 years, 10 months ago

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– Kushal Patankar · 2 years ago

That problem deserved to be there.Log in to reply

There are some way to know if a problem we want to share already was shared by someone? – Eloy Machado · 2 years, 10 months ago

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If you are the creator of a problem (and have email notifications enabled), we do send you an email indicating which person has liked / reshared your problem / note / set. – Calvin Lin Staff · 2 years, 10 months ago

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– Eloy Machado · 2 years, 10 months ago

I apologize for my english, of course I was not clear in my question. :-( My question was about how to avoid posting a repeated problems. (e.g., someone in the past have already posted same problem)Log in to reply

– Calvin Lin Staff · 2 years, 10 months ago

Ah ic. Don't worry about that, just post it if you find it interesting.Log in to reply

– Eloy Machado · 2 years, 9 months ago

Thanks. I did it! its here: https://brilliant.org/community-problem/tiny-angle/?group=xsLX8fyRYQSO One more doubt: Someone in staff will rate it? I was afraid to do it by myself.Log in to reply

Staff do not actively rate problems. – Calvin Lin Staff · 2 years, 9 months ago

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– Ashish Siva · 7 months, 4 weeks ago

I am not sure why but I have stopped getting emails of who all liked/reshared my questions via email. I used ro get them 2 weeks back. Now it has stopped.Log in to reply

You can make a set of these problems, as a model for others to follow. – Shabarish Ch · 2 years, 10 months ago

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Wow, this is really great! Thanks for mentioning my problem for the Algebra! I'm super happy right now! :D – Finn Hulse · 2 years, 10 months ago

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Really helpful !!! – Jasveen Sandral · 2 years, 10 months ago

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For my problem, I think the image is cool haha – Christopher Boo · 2 years, 10 months ago

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It's very good question though don't know the answer Help Plzz.... – Nikhil Kumar · 6 months ago

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Ant moves in a cylindrical pipe? An ant starts from the top rim of the cylinder section of a pipe and reaches a point directly below its starting point after making three complete revolutions around the pipe...Find the distance travelled by the ant if the height of the cylinder is 24 cm and radius of the pipe is 3/pi cm . – Nikhil Kumar · 6 months ago

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I think posting image is only possible via computer but not through mobile devices. How to include image while posting problem through mobile devices? – Akash Patalwanshi · 8 months, 3 weeks ago

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`![caption](image URL)`

.If you are referring to using the browser on mobile, then when you post a problem, solution or note, you have a formatting toolbar that allows you to upload images directly.

Note that this functionality is not available for comments , on both mobile and the app. Note that you currently are unable to post problems or notes from the app. – Calvin Lin Staff · 8 months, 3 weeks ago

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– Akash Patalwanshi · 8 months, 3 weeks ago

Thanks for replying sir.Log in to reply

How can you post a picture in a problem that can zoom, so that the content of the picture are visible more clearly? – Vignesh S · 11 months ago

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At the most, you can request that people open the picture to zoom in. – Calvin Lin Staff · 11 months ago

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Sir, how should i decide the chapter of the question. Can you please suggest some good names? – Ashish Siva · 11 months ago

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When you start typing, you will see suggestions for possible candidates. E.g.

– Calvin Lin Staff · 11 months agoLog in to reply

– Ashish Siva · 11 months ago

Oops. Thank you for telling that now. In all my questions i have given the chapter "Counting"Log in to reply

How to upload image of questions? Please provide me link, if we have to upload from mobile? Thank you – Harshit Verma · 11 months, 1 week ago

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Thanks for the info. My Problem "Triangles of the year just became popular. I'll try to make great problems as soon as possible. – Brian Dela Torre · 11 months, 3 weeks ago

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Thank you – Piyush Palawat · 1 year ago

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Thanks for the tips... – Vignesh Rao · 1 year ago

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Thanks yaar it is so useful – Monal Dhankar · 2 years, 10 months ago

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So far so good,:)... – Mohd Naim Mohd Amin · 2 years, 10 months ago

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