brain teaser

Similar brain-teaser programs are available on home computers, sometimes free of charge.

类似“脑袋瓜回春的”电脑软件也可以装在家里的电脑, 有些软件甚至免费的.

In conclusion, I would like to leave you with a brain teaser.

最后, 大家来动动脑筋.

Other types of brain teaser question are more open-ended.'You might be asked for an estimate, but don't simply answer with a figure off the top of your head,' warns Rob.

其他的脑筋急转弯问题答案就很多了。你可能会被要求估算什么，不要想着一定要有个确切的数字。

Any brain teaser question requires thinking through several stages of reasoning.

任何脑经急转弯的问题都是有几个推理阶段的。

Rob recommends using the following three steps to answer the question ( which works for any sort of brain teaser question).

罗布推荐用一下三步回答（也适合其他的脑筋急转弯问题）