智力测试 What two things can you not have for breakfast?What has teeth but can′t eat?

问题描述:

智力测试 What two things can you not have for breakfast?What has teeth but can′t eat?

lunch,dinner
a comb,zipper,saw答案能解释吗?早饭不能吃的,明显就是午饭和晚饭comb梳子,saw锯子,zipper拉链都有“齿”,but they dont eat