Q

Which horses have six legs？
什么马有6条腿？

A

All horses have forelegs（four legs）in front and two in back, so they all have six legs.
所有的马都有前腿和后腿，所以它们都有6条腿。

点睛一笔

foreleg是指“前腿”。forelegs和four legs的发音相似，结果就变成了：每只马前面都有“4条腿”，后面都有两条腿，所以一共是6条腿。