Quest ions You Hope Your Pupils Won't Ask You
你不希望学生提的问题

Why doesn't glue stick to the inside of its bottle?
为什么胶水不会粘住瓶子的里面呢？

Why are cigarettes sold in gas stations when smoking is prohibited there?
既然加油站是严禁吸烟的，为什么那里还卖香烟呢？

Why is lemon juice mostly artificial ingredients but dishwashing liquid contains real lemons?
为什么柠檬汁里大部分都是人工添加剂，而洗洁精里却含有真正的柠檬呢？

If 7—11 is open 24 hours a day, 365 days a year, why are there locks on the doors?
如果7—11便利店是一年365天、天天24小时营业，他们的大门上为什么还安着锁呢？

If a cow laughed, would milk come out of her nose?
如果一头奶牛笑了，牛奶会不会从它的鼻子里出来？

If you're in a vehicle going the speed of light, what happens when you turn on the headlights?
如果你坐在一辆以光速行驶的汽车上，当你打开前灯的时候会发生什么情况？

If it's zero degrees outside today and it’s supposed to be twice as cold tomorrow, how cold is it going to be?
如果今天外面的气温是零摄氏度，明天要比今天冷两倍，那明天会有多冷？

What do you plant to grow a seedless watermelon?
种无籽西瓜要播什么种子呢？