Knock Knock - Alaska

Knock Knock
Who's there?
Alaska!
Alaska who?
Alaska my friend the question then!

Mexican Card Games

Q: Why can't Mexicans play Uno?
A: They always steal the green cards.

Knock Knock - Remember

Bob: "Will you remember me tomorrow?" 
Bill: "Yes"
Bob "Will you remember me next week?" 
Bill  "Yes"
Bob: "Will you remember me next month??"
Bill: "Yes"
Bob: "Will you remember me next year?"
Bill: "Yeah"
Bob: "Knock Knock"
Bill: "Who's There?"
Bob: "See, you forgot me already!"