Here is a concise summary of the provided transcript:
**Title:** Twin Brothers Take a Lie Detector Test to Reveal Dirty Secrets
**Summary:**
* Twin brothers, who claim to have no secrets from each other, take a lie detector test to answer questions about their relationship and personal opinions.
* The test reveals some surprising truths, including:
+ One brother had blamed something on the other without telling him.
+ The same brother had used the other's toothbrush (initially denied, but the test detected a lie).
+ One brother had a crush on someone the other had a relationship with.
+ Contrary to their claims, the test suggests they don't always think equally of each other's abilities (e.g., with girls, cooking, and being "cool").
* The brothers discuss the results, finding some answers hilarious and others insightful, acknowledging the test's accuracy in detecting their true thoughts.
**Outcome:** The experiment leads to a lighthearted, entertaining exploration of their relationship, with the brothers vowing to return with more questions in a future video.
Here are the key facts extracted from the text, keeping each fact as a short sentence and numbered for reference:
1. **Twin Participants**: The participants are twin brothers who do everything together.
2. **Lie-Detector Test**: A real, legitimate lie-detector test is used to detect truthfulness via pulse, brain, and other bodily responses.
3. **First Question's Outcome**: One brother admitted to blaming something on the other, getting them in trouble, without telling them.
4. **Toothbrush Incident**: Initially denied, but the lie-detector revealed one brother had used the other's toothbrush.
5. **Crush Admission**: One brother admitted to having a crush on someone the other had a relationship with.
6. **"Game" with Girls**: A dispute over who has better "game" with girls, with one brother initially claiming superiority, which was later questioned.
7. **Coolness Perception**: A brother was found to be lying when they said they didn't think they were cooler than the other.
8. **Intelligence Comparison**: A question about who believes they are smarter was asked, with one brother affirming they believe they are.
9. **Cooking Abilities**: A brother was found to have falsely claimed to be a good cook.
10. **Jealousy Question**: Initially, one brother denied ever being jealous of the other's success with girls.
11. **Favorite Sibling Question**: The question was asked, but the context suggests it's more of a humorous, unanswerable query given their twin status.
12. **Wishing Not to be Twins**: One brother denied ever wishing they weren't twins.
13. **Polygraph Results**: The polygraph revealed several instances where the brothers were not truthful in their responses.
14. **Video Conclusion**: The video ends with a reflection on the polygraph's accuracy and an invitation for viewers to like the video.