很多时候，家长都觉得自己家的孩子怎么就不如别人的孩子聪明呢，在对待问题的时候，怎么就不如其他人反应快呢？其实，孩子的脑子也需要锻炼，经常用脑则会让脑瓜子越来越灵活。反之，长时间不动脑，则会让脑子“生锈”，反应越来越迟钝。想让孩子变得聪明吗？想激活孩子细胞，让大脑得到锻炼吗？那就和孩子一起来玩脑筋急转弯吧。（答案在第二页）
1. What will you break once you say it? (什么东西一说出来就打破？)
2. Will liars be honest after they die? (骗子死了之后会诚实吗？)
3. What always goes up and never goes down? (什么东西只升不降？)
4. Why did the boy make his dog sit in the sun? (男孩为什么让他的狗坐在阳光下？)
5. Why can a bride hide nothing? (为什么新娘子什么也藏不住？)
6. Why is the library the highest building? (为什么图书馆是最高的建筑物？)
7. What is the smallest bridge in the world? (世界上最小的桥梁是什么？)
8. What is the difference between the North Pole and the South Pole? (北极与南极的区别是什么？)
9. What makes naughty boys long to work in a clock factory? 淘气的男孩为什么想去钟表厂工作？)
10. What bird lifts heavy things? (什么鸟能举起重物？)
11.A ship can contain only fifty persons. Now there is already forty-nine persons in it. At this time,a pregnant woman comes on and boards the ship. The ship sinks.Why?(有一艘船只能容纳50人，现在已有49人。这时一位孕妇上了船，船就沉了。为什么？
12. Why is the comet like Micky Mouse? (为什么是慧星像米老老鼠？)
13. Who is closer to you, your mom or your dad? (谁跟你比较亲密，你的妈妈或你的爸爸？ )
14. What's the poorest bank in the world? (世界的最贫穷的银行是什么？ )
15. What month do soldiers hate?(军人憎恨什么月？ )
16.An old woman has lived in one-story house before.Her body is very short. Afterwards,she moves into a big building and lives in the ninth story. However, when she comes back home each time,she always takes an elevator to the sixth story and gets off,then she walks to the ninth story.Why?( 有位老妇人，从前住平房，并且个子非常矮，后来她搬进了一个很高的楼里，住在第九层，但是她每次回家，她总是乘电梯到第六层就下来，然后走到第九层。为什么？)
