Can I submit a question without an answer?

Yes. Questions submitted without an official answer are published in the Unsolved section, where community members can submit their own explanations. These questions are tagged "No Answer Yet" until an explanation is verified and accepted by our review team.

Where should I host the question image?

Use any public image host that provides a stable direct URL. Good options include Imgur (imgur.com), Pinterest (use the direct image URL ending in .jpg or .png), PostImages, or your own hosting. Avoid Google Drive or Dropbox links, which redirect and will not load correctly.

Will my name appear on the published question?

If you provide your name in the submission form, it will be recorded internally and may be shown in a contributor credit on the published question page. Your email address is never shown publicly and is only used if we need to contact you about your submission.

Can I submit questions in other languages?

Currently, all submitted questions are reviewed and published in English. If the question image itself is language-neutral (a pure visual or number puzzle), it may be published across all language versions of the site. Questions that rely on text in the image are only published in the relevant language version.

Submit an IQ question

Contribute a visual puzzle to the community question bank. Link your image, add the answer and how to reach it, and every submission is reviewed and credited before it's published.

48–72 htypical review time

5categories open

Creditedon every published question

01Question detailsQuestion title *

Category *

Difficulty *

02The imageImage URL *Direct link ending in .jpg, .png or .webp

Required

Imgur, PostImagesCopy the direct image link

PinterestUse the URL ending .jpg or .png

Your own siteAny stable, public URL

Drive, DropboxThey redirect and won't load

Question description *

03Answer and solutionoptional

Correct answer

Solution explanation · recommended

No answer? That's fine. It will be published in Unsolved, tagged “No Answer Yet”, for the community to crack.

04About youoptional

Your name · for the creditYour email · never shown publicly

SUBMISSION GUIDELINES

Six rules every question must pass

Submissions that are vague, incomplete or break these rules won't be published.

01Use a direct image URL

DO…/abc.pngDON'Tdrive.google.com/…

02Make it visual

DOgrid · matrix · sequenceDON'Ta word riddle

03Don't reveal the answer

DOclean imageDON'Tanswer circled in red

04Explain step by step

DOrule → apply → checkDON'T“it's obviously B”

05Original or freely shareable

DOyour own designDON'Tscanned test booklet

06Complete and unambiguous

DOone defensible answerDON'Ttwo answers fit

WHICH TYPES CAN I SUBMIT?

Five categories are open

Strong IQ questions aren't just difficult; they're precise. Exactly one defensible answer, a clear visual structure, and a rule a solver can rebuild from first principles.

Pattern recognition

Submit 3×3 or 4×4 matrix grids where shapes, symbols or figures follow a hidden rule. The best have a single clean rule applied consistently across every row and column.

STRONG◯ ◐ ● / ◻ ◧ ◼ / △ ◭ ?One rule (shading) runs through every row.

WEAK◯ ◻ △ / ● ? ◼Two rules could explain it, so two answers fit.

Good rules:

rotationreflectionadditionsubstitution

See published pattern recognition questions

WHY CONTRIBUTE

Built by puzzle-makers, used by thousands

The bank is written by puzzle enthusiasts, educators and cognitive researchers. Every question that passes review is published with the contributor's name and becomes free practice material.

WHAT HAPPENS NEXT

SubmittedNowYour question joins the review queue straight away.

Reviewed48–72 hThe team checks the image loads, the rule is clear and there's exactly one defensible answer. Formatting or wording may be edited for clarity.

Published, or notAfter reviewApproved questions go live with your credit: in their category if they have an answer, in Unsolved if not. Rejected ones simply aren't published.

FAQ

Questions before you submit

Pick a question to see the answer, with a quick picture of how it works.

How long does review take?

0 h24 h48 h72 h

SubmittedJoins the review queue immediately.

ApprovedPublished with your credit.

RejectedNot published. No notification.

Most submissions are reviewed within 48 to 72 hours. Questions that pass the quality check are published with full credit to the contributor. If a submission is rejected it won't appear publicly, and you won't receive a notification; this discourages low-quality re-submissions.

Ready to browse what others have contributed?

See the formats reviewers accept, then come back with your own.

Browse all IQ questions View solved questions