Question

1. What are they like?
-They are brave.

2. What is their presonality like?
- They are brave.

(Are the questions and answers right and the same?)

3. It is shaped like a fish.
4. They are shaped like fish.

(Are both grammatical? What is the part of speech of 'shaped' in the sentence?)

Answer 1

1 and 2 are fine, but correct the spelling error in #2.

3 and 4 are fine, too. The words "were shaped" make up the main verb; "were" is the auxiliary (helping) verb.