写出符合下列答语的问句。
1. — ____________________________________?
— Sarah is 14 years old.
2. — ____________________________________?
— John is 52 kg.
3. — ____________________________________?
— Wu Yifan is 165 cm.
4. — ____________________________________?
— Amy wears size 36.
5. — ____________________________________?
— My schoolbag is heavier.