Teacher: Which of the following two sentences does not make sense?
Options:
- Sentence A: "the water in the river has color and smell because it is getting cleaner and cleaner"
- Sentence B: "the water in the river has color and smell because it is getting dirtier and dirtier"

Student: There is no smell or colour in a clean river.
The answer is Sentence A.

question in book:
Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "smoking can be a deadly habit"
- Sentence B: "smoking can be a healthy habit"

standard solution:
Years of clinical research have shown smoking to be patently unhealthy.
The answer is Sentence B.

[TEACHER] Of the below sentences, which one does *not* make sense?
Options:
- Sentence A: "People often wipe their sweat with bedsheets."
- Sentence B: "People often wipe their sweat with towels."

[Student] The sheets are laid on the bed for sleeping.
The answer is Sentence A.

Teacher: Choose the sentence that goes against common sense.
Options:
- Sentence A: "Clock can show time"
- Sentence B: "Clock can show the temperature"

Student: A clock is used to only tell time.
The answer is Sentence B.

question in book:
One of the following sentences is nonsensical. Which one is it?
Options:
- Sentence A: "human's teeth are black naturally"
- Sentence B: "human's teeth are white naturally"

standard solution:
Human teeth are made of a calcium compound which is naturally white.
The answer is Sentence A.

Teacher: Pick which sentence is not logical.
Options:
- Sentence A: "Gasoline can power cars."
- Sentence B: "Air can power cars."

Student:
Cars require a combustible fuel and air is not combustible.
The answer is Sentence B.