question in book:
One of the following sentences is nonsensical. Which one is it?
Options:
- Sentence A: "You must fill up a bath-tub with water to take a bath."
- Sentence B: "You must fill up a bath-tub with ketchup to take a bath."

standard solution:
Ketchup is used on foods, not in the bath-tub.
The answer is Sentence B.

question in book:
Which of these sentences doesn't make sense?
Options:
- Sentence A: "He played guitar with his fingers"
- Sentence B: "He played guitar with his nose"

standard solution:
Guitars have to be played with fingers that can string them.
The answer is Sentence B.

question in book:
Of the below sentences, which one does *not* make sense?
Options:
- Sentence A: "You are likely to find trees in a forest"
- Sentence B: "You are likely to find buildings in a forest"

standard solution:
Forests are remote areas that are void of any buildings.
The answer is Sentence B.

question in book:
Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "The host forbid others entering the house by building fence around his house"
- Sentence B: "The host forbid others entering the house by planting grass around his house"

standard solution:
Grass is not a barrier to stop people.
The answer is Sentence B.