Q: there are 2 birds on a tree, a red bird n a green one. the
red need 2 bullets to be killed whereas the green only need 1. a
hunter below it has a gun with only 2 bullets in it. how will he
shoot so that he can kill the two birds?
A: he will shoot the green bird first,
then the red bird will be scared until "lian3 qing1 qing1" (face
turn green) then he can kill it with one bullet liao.