this post was submitted on 20 Feb 2026
329 points (98.5% liked)

Dull Men's Club

3627 readers
795 users here now

An unofficial chapter of the popular Dull Men's Club.

https://dullmensclub.com/

1. Relevant commentary on your own dull life. Posts should be about your own dull, lived experience. This is our most important rule. Direct questions, random thoughts, comment baiting, advice seeking, many uses of "discuss" rarely comply with this rule.

2. Original, Fresh, Meaningful Content.

3. Avoid repetitive topics.

4. This is not a search engine
Use a search engine, a tradesperson, Reddit, friends, a specialist Facebook group, apps, Wikipedia, an AI chat, a reverse image search etc. to answer simple questions or identify objects. Also see rule 1, “comment baiting”.

There are a number of content specific communities with subject matter experts who can help you.

Some other communities to consider before posting:

5. Keep it dull. If it puts us to sleep, it’s on the right track. Examples of likely not dull: jokes, gross stuff (including toes), politics, religion, royalty, illness or injury, killing things for fun, or promotional content. Feel free to post these elsewhere.

6. No hate speech, sexism, or bullying No sexism, hate speech, degrading or excessively foul language, or other harmful language. No othering or dehumanizing of anyone or negativity towards any gender identity.

7. Proofread before posting. Use good grammar and punctuation. Avoid useless phrases. Some examples: - starting a post with "So" - starting a post with pointless phrases, like "I hope this is allowed" or “this is my first post” Only share good quality, cropped images. Do not share screenshots of images; share the original image.

.

founded 1 year ago
MODERATORS
 

I’d like to ask the good people of this community that, if you do know the solution or figure it out, that you not share the answer here. Feel free to announce your success, but there’s something to be said for discovering the answer completely unaided, even if it takes years.

It’s embarrassingly obvious once you see it though.

you are viewing a single comment's thread
view the rest of the comments
[–] HeyThisIsntTheYMCA@lemmy.world 1 points 8 hours ago (1 children)

I still keep thinking it's 15, which I know is wrong, and then I math in 14,but I can't figure out a function. Does someone want to dm me or spoiler me the function how it works? My brain is too full of more important stuff and I cannot make room for this. But I must know!

[–] glibg10b@lemmy.zip 7 points 7 hours ago* (last edited 7 hours ago) (2 children)

Someone else commented it the pattern. The answer is not 14 or 15.

HintThere is no function. You won't find the answer by trying different combinations math operations on the values. You need to think more outside the box.

Hint #2Ignore the values.

Hint #3Focus on just three numbers. How can 13 and 21 produce 7?

[–] HeyThisIsntTheYMCA@lemmy.world 2 points 6 hours ago (1 children)

I think I got itWait was I two or three off?

[–] glibg10b@lemmy.zip 2 points 5 hours ago
[–] angrystego@lemmy.world 3 points 7 hours ago

Thank you so very much!!!