Riddles (Part 2) | 脑筋急转弯（2）

English Original

1. What is black when it's clean and white when it's dirty?
2. What can you place in your right hand that you can't place in your left hand?
3. What will get smaller if you turn it upside down?
4. What is taller sitting down than standing up?

中文翻译

1. 什么东西干净时是黑的，弄脏了反而是白的？
2. 什么东西只能放在右手不能放在左手？
3. 什么东西倒过来会变小？
4. 什么东西坐着比站着高？

Answers / 答案

1. A blackboard. (黑板)
2. Your left elbow. (你的左肘)
3. Lots, e.g., 9, 99, 991, 999... (很多，例如数字9，99，991，999...)
4. A dog. (一条狗)

Note: For question 3, "turn it upside down" means to invert it, which makes numbers like "9" look like "6" and thus appear smaller.
注： 对于问题3，“倒过来”指的是上下颠倒，这使得像“9”这样的数字看起来像“6”，因此显得更小。