Question: We lost the 6th book in the series. After two months, we finally found it…
问题：我们丢失了系列中的第六本书。两个月后，我们终于找到了…
Answer: Flip over the ninth book
答案： 把第九本书倒装
IQ question 29
Question: We lost the 6th book in the series. After two months, we finally found it…
问题：我们丢失了系列中的第六本书。两个月后，我们终于找到了…
Answer: Flip over the ninth book
答案： 把第九本书倒装