Question

He said to me, "Who are you?"
He said to me, "What have you written?"
I said to him, "What are you doing here?"
I said to him, "Where were you going?"
He said to me, "What is the shortest way back?"
He said to him, "Why do you stop here?"
He said to me, "Why did you write me this letter​

Answer 1

Answer:

he asked me who I was

he asked me what I had written

I asked him what he was doing there

I asked him where he had been going

he asked me what the shortest way was back

he asked him Why he stopped there

he asked me why I had written him that letter

Answer 2

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If you want to change this sentences in indirect speech,

He asked me who I was.

He asked me what I had written.

I asked him what he was doing there.

I asked him where he was going.

He asked me what was the shortest way back.

He asked him why he stopped there.

He asked me why I had written him that letter.