第一案：說(shuō)謊的保姆

一戶人家發(fā)生了火災(zāi)，萬(wàn)幸沒(méi)有人員傷亡。偵探到達(dá)現(xiàn)場(chǎng)后，發(fā)現(xiàn)家中一切都被燒成了灰燼，勘查極為困難。

他調(diào)取了唯一的目擊者——保姆的口供。保姆稱，火災(zāi)發(fā)生的那天，她正在準(zhǔn)備晚餐。做油炸餅時(shí)，她去了趟衛(wèi)生間，回來(lái)就發(fā)現(xiàn)鍋內(nèi)炸油起火，她立即關(guān)掉煤氣灶。這時(shí)，有人沖進(jìn)來(lái)，將灶臺(tái)上的一桶油澆在起火的鐵鍋里，以致火勢(shì)更大，她嚇得跑出了家?；艁y之中，她也不知道那人跑到哪里去了。

偵探看完卷宗，并沒(méi)有尋找另一個(gè)人，而是認(rèn)為保姆在說(shuō)謊。你知道為什么嗎？

第二案：Who's the thief？

The detective happened to meet a case of robbery. There were two people at the scene， both of whom said that the opposite side was the thief.

The victim was an old lady. After she was robbed of her wallet， a kind man chased her and caught the thief. But when the old lady arrived， both of them said that they were the good natured man who caught the thief.

The detective smiled and said， "Please run as far as you can to where the policeman is standing！ "

Both of the men started running at once. When they ran in tandem in front of the police， they heard the detective shouting， "Get him！ "

So， who is the detective going to catch？

有膽你就來(lái)??！