10    9    8    7    6    5    4    3    2    1   Knock Knock! Who's there? Cow-go Cow-go Who? No, Cow go MOO!!! Knock Knock! Who's there? I used. I used who? I used to be able to reach the doorbell, but now I can't! Knock Knock! Who's there? Vitamin. Vitamin who? Vitamin in for a party! Knock Knock! Who's there? Get off. Get off who? Get off the Internet! More jokes sites: Comments - Not Pested Be the first who post comment for this joke! Post your comments here: Your Name     New | Popular | Top rated If you have any great jokes you want to share with everyone, submit them here >> Add Joke   Desktop Playmates! Download Now!   Your Favorite List:  Clear all Favorites