Question 1
The claim that humans only use 10% of their brain is false. Brain imaging studies, such as fMRI and PET scans, show that even simple tasks activate widely distributed, interconnected regions across the entire brain. There is no dormant 90%; all parts of the brain have known functions and are active at various times.
Source: https://www.scientificamerican.com/article/do-people-only-use-10-percent-of-their-brains/

Question 2
Ranking (most → least reliable): B → A → C → D
Top choice (B – Official FDA drug label): As the legally mandated, evidence-based summary of all safety and efficacy data reviewed for approval, the FDA label is the most authoritative and complete source for known and potential long-term side effects.
Bottom choice (D – Reddit experience thread): This source is purely anecdotal, unverified, subject to heavy selection bias, and lacks any scientific or regulatory oversight, making it wholly unreliable for assessing long-term side effects of a medication.

Question 3
Factual error: The response states that Einstein’s 1921 Nobel Prize in Physics was awarded “for his work on general relativity.”
Correction: Einstein received the 1921 Nobel Prize in Physics for his discovery of the law of the photoelectric effect, not for general relativity.
Source: https://www.nobelprize.org/prizes/physics/1921/einstein/facts/

Question 4

· Claim 1: TRUE
· Claim 2: FALSE
· Correction: The Titanic was operated by the White Star Line, not the Cunard Line.
· Source: https://www.britannica.com/topic/Titanic
· Claim 3: TRUE
· Claim 4: FALSE
· Correction: The Titanic departed from Southampton, England, on its maiden voyage, not from Liverpool.
· Source: https://www.britannica.com/topic/Titanic
· Claim 5: TRUE

Question 5
Response A is more effective.
Response A immediately connects the candidate’s specific, quantified experience (Python services handling 30M+ requests per day on a distributed inference platform) directly to Acme Corp’s needs. This targeted, evidence-based approach demonstrates genuine fit, whereas Response B is generic, lacks any concrete achievements, and wastes the opening on vague enthusiasm without showing why the candidate is qualified for this particular senior role.

Question 6
The invention I could not live without is the Internet. It has fundamentally reshaped modern society by democratizing access to information, enabling instant global communication, and serving as the backbone for commerce, education, and healthcare. The Internet collapses geographic barriers, allowing a student in a remote village to access the same scholarly resources as one at a top university, and empowers social movements by giving ordinary people a platform to organize and be heard. Its capacity to connect devices and data has also driven innovations like telemedicine, remote work, and smart infrastructure, making daily life more efficient and interconnected in ways that would have been unimaginable a generation ago.

Question 7
(a) List of constraints implied by the prompt:

1. The thank-you note must be under 100 words.
2. The note must mention the sweater’s color, forest green.
3. The note must state that the fit is perfect.
4. The tone must be warm but slightly formal.
5. The salutation must be “Dearest Grandmother” instead of “Dear Grandma.”
6. The note must be signed with the full name “Eleanor Whitfield.”
7. The note must genuinely reflect that the sweater was knit by hand by the grandmother (implied by the specific scenario).

(b) Evaluation of each constraint:

1. Under 100 words: Satisfied. The response contains 54 words, well within the limit.
2. Mention forest green: Satisfied. The note says “the beautiful forest green sweater.”
3. Mention perfect fit: Satisfied. It states “The fit is absolutely perfect.”

4. Warm but slightly formal tone: Partially satisfied. The language is warm and polite, but the closing “With love, Eleanor” and phrasing like “picking it out” lean more casual than slightly formal.
5. Use “Dearest Grandmother”: Satisfied. The salutation is exactly “Dearest Grandmother.”
6. End with full name “Eleanor Whitfield”: Not satisfied. The note signs off as only “Eleanor,” omitting the surname “Whitfield.”
7. Reflect hand-knit nature of the sweater: Not satisfied. The line “the care you put into picking it out” changes the act of knitting to one of purchasing, which fails to honor the handmade gift.

Question 8
Prompt:
Write a how-to guide for properly sharpening a kitchen knife using a whetstone. The target audience is a complete beginner who has never sharpened a knife before. Adopt an encouraging, patient, and instructive tone that reduces any intimidation around the process.

Structure the guide with a brief introductory paragraph, followed by numbered steps. Each numbered step should include a sublist detailing exactly what to do with the stone, hands, and blade in that phase. End with a closing tip that helps maintain the knife’s sharpness over time. Do not assume the reader owns any specialized sharpening gear beyond a basic combination whetstone (grit ~1000/6000), a kitchen towel, and a bowl of water; do not include any steps that require a honing rod or electric sharpener.

Evaluation criteria:

1. The response should include a clear, multi-step process with numbered steps and sublists as requested.
2. The response should consistently use a patient, beginner-friendly tone and avoid advanced jargon without explanation.
3. The response should respect the constraint by only referencing the specified basic tools and never mentioning a honing rod, electric sharpener, or other unlisted equipment.

Final details

· How did you find us? (Please fill as appropriate, e.g., “Referred by a colleague,” or “Google search.”)
· (Optional) Any other comments? (None / leave blank or add a brief note.)