Whats the difference between a duck?

Question

Whats the difference between a duck?

Answer 1

Err... I don't get it...

Answer 2

if it ain't duckin' it's quackin'!

Answer 3

One of its legs is both the same, and it bangs its head together when it walks

Answer 4

A very clever answer for your question.

   Because one of its legs is both the same and the higher it flies the much!"

Answer 5

What's the difference between a duck and a bad riddle teller?

Answer 6

I don't know, because I was busy watching the orange, it was peeling.  

Answer 7

One of its legs is both the same, and it bangs its head together when it walks

Answer 8

nvm i just feel retarded..

how the h**l can you tell the difference of something with only 1 d**n thing xD

so there is nothing dude if not then i hate riddles xD