1. It's only five minutes' walk.

2. It's only within five minutes' walk.
3. It's only in five minutes' walk.
(Are they all correct?)

4. The naughty boy laughed at the handicapped.

5. The naughty boy made a fool of the handicapped.

6. The naughty boy made fun of the handicapped.

7. The naughty boy ridiculed the handicapped.

8. The naughty boy derided the handicapped.

(I used similar expressions and made sentences. Are they all the same and grammatical?)

Only 1 is correct; 2 could be correct if rephrased a bit (It's only within a five-minute walk.). 3 is not correct.

In 4-8, the word "handicapped" is an adjective and it's not modifying anything. All would be correctly phrased if you add a noun at the end of the sentence, such as "The naughty boy laughed at the handicapped person." (girl, man, woman, child, etc.)

1. It's only five minutes' walk.

2. It's only within five minutes' walk.
3. It's only in five minutes' walk.
(Are they all correct?)

All three sentences are understandable, but they differ slightly in terms of clarity and usage.

Sentence 1, "It's only five minutes' walk," is a straightforward way of saying that the distance is a five-minute walk.

Sentence 2, "It's only within five minutes' walk," is a bit more detailed and emphasizes that the location or destination is reachable within a five-minute walk. This is commonly used to describe the proximity of a place.

Sentence 3, "It's only in five minutes' walk," is also understandable, but it may sound a bit less natural. It suggests that the place or destination will be reached exactly at the five-minute mark.

Out of these three options, sentence 1 is the most commonly used and straightforward way to express the idea of a short walking distance.

4. The naughty boy laughed at the handicapped.
5. The naughty boy made a fool of the handicapped.
6. The naughty boy made fun of the handicapped.
7. The naughty boy ridiculed the handicapped.
8. The naughty boy derided the handicapped.
(Are they all the same and grammatical?)

Sentences 4 to 8 convey similar ideas but have different nuances.

Sentence 4, "The naughty boy laughed at the handicapped," implies that the boy found humor in the situation or condition of the handicapped individual. This sentence may be seen as derogatory or offensive, as it does not show empathy or respect.

Sentence 5, "The naughty boy made a fool of the handicapped," means that the boy intentionally tried to make the handicapped person seem foolish or to embarrass them. This sentence suggests that the boy acted in a disrespectful manner.

Sentence 6, "The naughty boy made fun of the handicapped," carries a similar meaning to sentence 5. It indicates that the boy teased or mocked the handicapped person, possibly in a mean-spirited way.

Sentence 7, "The naughty boy ridiculed the handicapped," suggests that the boy openly mocked or made fun of the handicapped individual, potentially causing shame or humiliation.

Sentence 8, "The naughty boy derided the handicapped," is similar to sentence 7 and implies that the boy expressed contempt or scorn towards the handicapped person.

These sentences are grammatically correct, but it is important to consider the potential negative impact of using offensive or disrespectful language.