New knock knock jokes i made up. please rate.?

[CrazyTrain]

1.
Me: Knock knock
You: who's there?
Me: Oprah
You: Oprah who?
Me: You mean you don't know who Oprah is?
2.
Me: Knock knock
You: Who's there?
Me: Cindy Lou
You: Cindy Lou Who
Me: Who do you think you are? Dr. Seuss?
*Cindy Lou Who is the little girl who in The Grinch in case you don't get it)
3.
Me: Knock Knock
You: Who's there?
Me: Doctor
You: Doctor who?
Me: What makes you think I'm Doctor who?
4.
Me: Knock knock
You: Who's there?
Me: Ya
You: Ya who?
Me. dot com
*yahoo.com*

what do you think?

 

[GouGou]

1,2,4 were good
i really liked the last one lol

 

[yelix]

theyre pretty good actually

 

[SweetmHeart]

it's not funny hahaha.but it's ok

 

[Cozie]

PJ PJ.