a lame joke..
A RED bird can be killed by 2 bullets..
A GREEN bird can be killed by 1 bullet..
So how can a hunter kill a red bird and a green bird with only 2 bullets?
Anwser: he first shot the green bird with the 1st bullet. Upon seeing the red bird shot, the red bird turned GREEN with fright and the hunter shot it with his 2nd bullet.. -.-"