Need a little help?

Knock! Knock!

Who’s there?

Needle.

Needle who?

Needle little help getting in the door!

Brrrrr!

Knock! Knock!

Who’s there?

Scold.

Scold who?

Scold outside, let me in!

What starts with e

What starts with e, ends with e, and only has one letter in it?

An envelope.