1. What bird lifts heavy things？ 什么鸟可以举起来很重的东西？

2. What is yours but is used by others more than by yourself？

什么东西是你的但是别人却用得比你多？

3. What always goes up and never goes down？ 什么东西永远只升不降？

4. What will you break once you say it？ 什么东西你说出来就打破了它？

答案：

1. Crane（鹤，另外一个意思是举重机）. 2. Your name. 3. Your age. 4. Silence.