1. Are you the tallest in your class? - No, I'm not.
2. Are you taller than your friend? - No, I'm not.
3. Is your friend better at Maths than you? - Yes, he is.
4. Who is the best at Maths in your class? - My friend is.
5. Are you the oldest in your class? - No, I'm not.
6. Is your friend older than you? - Yes, he is.