Could they be suitable questions and answers? (3. 10/11)

Hi teachers,
This is the context:
At eight o’clock in the morning of the third day the telephone rang on Felix’s desk. Felix listened, then put the phone down quickly.
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Could they be suitable questions and answers? I can't find more challenging ones. Could you please?
a) Who answered the phone? Felix.
b) Did Felix talk on the phone? No, he didn't. He only listened.

Thanks in advance.