〔R43〕  My first is chiefly made of stone,

                 My second grows on trees.

                 I am edible, unlike a pine cone,

                 But you do not cook me as you do peas.

〔譯註〕 我的第一部分主要是石頭做的，

我的第二部分長在樹上。

我可以吃，不像松的毬果，

但你不會烹煮我，像你烹煮豌豆一般。

〔提問〕 If I am something you must crack before you eat me, what am I?

〔謎底〕 w_____