I'm 45 now and this is how I remember it.

Knock knock
Who's There
Just a little teddy bear
What do you want? A glass of Milk.
Where's your money? In my pocket.
Where's your pocket? In my coat.
Where's your coat? In my closet
Where's your closet? In my house
Where's your house? Down on the corner.
What's your number? Cumcumber!