Don't make these simple mistakes

What does she like?
What does she look like?
Who does she look like?
What is she like?

How would you answer the questions above? They are very simple questions but students still make mistakes when answering them. Let's look at the first one.

What does she like? (This questions asks you about your likes and dislikes)
She likes Italian food.
What about you, what(kind of food) do you like?

The second question, what does she look like? is asking about one's physical qualities.
A: What does she look like?
B: She is about 1.60m tall, slim, has long black hair, big almond shaped eyes, and a small mole on her left cheek. Here are two sample sentences I found on the ALC website

• "What does your boyfriend look like?" "Well, his face is wide and he's bald."
  「あなたの彼ってどんな人？」「顔が大きくて頭は禿げているのよ」
• Wow! What does she look like? まあ！彼女どんな感じなの？

Moving along to the third question, Who does she look like? is asking about who the person resembles.

resemble- (～のようである、～と［に］似ている、～に生き写しである)
I resemble my husband in that I am short. :
私は背が低いという点で夫と似ている。

A: Who does she look like?
B: She looks like her father. or
B: She looks like Angelina Jolie.

The last question, what is she like? is the one most students seem to get wrong most often.
This question asks about one's personality.

A: What is she like?
B: She is independent, ambitious, creative, charismatic.

• I heard she is called the "iron woman." What's she like?
  鉄の女だなんて、どんな女だ？