Teacher: Which of the following two sentences does not make sense?
Options:
- Sentence A: "Waiter is the most common liquid on Earth."
- Sentence B: "Water is the most common liquid on Earth."

Student: A waiter serves food and is not a liquid.
The answer is Sentence A.

Teacher: Choose the sentence that goes against common sense.
Options:
- Sentence A: "he needed a calculator to solve this difficult calculation"
- Sentence B: "he needed a calculator to solve this simple calculation"

Student: If it is simple, you shouldn't need a calculator.
The answer is Sentence B.

Teacher: Pick which sentence is not logical.
Options:
- Sentence A: "He communicated with his friends by letter"
- Sentence B: "He communicated with his friends by newspapers"

Student: Why would he communicate with his friends by newspapers? he could easily communicate with them in other ways.
The answer is Sentence B.

Teacher: Pick which sentence is not logical.
Options:
- Sentence A: "She was pregnant."
- Sentence B: "He was pregnant."

Student:
A man cannot be pregnant as he does not have a uterus.
The answer is Sentence B.