Here is a concise summary of the transcript:
**Title:** Brain Freeze with Caspar Lee and The Dolan Twins (Ethan and Grayson)
**Summary:**
* Caspar Lee introduces himself and apologizes for previously announcing the end of his "Brain Freeze" series, which is actually continuing.
* He reveals the new guests, The Dolan Twins (Ethan and Grayson), who participate in the Brain Freeze challenge.
* The challenge involves answering trivia questions while submerged in an ice bath.
* The twins struggle with UK-centric questions, leading to humorous exchanges.
* After the Q&A, both Caspar and the twins take turns dunking their heads in the ice bath, with one attempt lasting up to 20 seconds.
* The video ends with a lighthearted conclusion, promotions, and a playful jump into a pool.
Here are the key facts extracted from the text, keeping them short and objective, without opinions:
1. **Speaker's Introduction**: The speaker's name is Casper Lee, currently in Los Angeles.
2. **Show Name**: The show is called "Brain Freeze".
3. **Guests**: The guests on the show are the Dolan Twins (Ethan and Grayson).
4. **Location of Recording**: The recording is taking place in Los Angeles.
5. **Previous Guests Mentioned**: The Maynard brothers were previous guests on Brain Freeze.
6. **Question 1 Answer**: The approximate number of people living in England is 53 million.
7. **First King of England Answers**:
* Mentioned but incorrect: King Arthur, King Jack
* Correct answer not definitively confirmed in this context but Egbert was mentioned.
8. **University Question**:
* The third oldest university in England was a subject of questioning.
* Incorrect answer given: Birmingham
* Correct answer mentioned: University of St Andrews (though not fully spelled out, "University of Andrews" is likely referring to this)
9. **Stonehenge Construction Time**:
* Incorrect answers: 1754, 1886
* Correct answer: Approximately 3100 BC
10. **Current Queen of England**:
* Answer given with specificity required: Queen Elizabeth the Second
11. **Most Subscribed Female YouTuber in the UK**:
* Answer given: Zoella
12. **Current Prime Minister of England**:
* No correct answer provided in the excerpt (Theresa May mentioned, but without context of the time of recording)
13. **Capital City of England**:
* Correct answer: London