Dr. Knucklehead is knock-knocking at the door with fun in mind. Children will happily answer the call, because they just love knock-knocks more than any other form of humour. Kids will have a laugh riot repeating these gags. Try this: Knock Knock. Who's there? Daisies. Daisies who? Days he's a man, but by night, he's a werewolf! Or laugh a lot at this: Knock Knock. Who's there? Billows. Billows who? Bill owes me ten bucks and he said you'd give it to me. Each one is hilarious!
- ISBN10 1402725469
- ISBN13 9781402725463
- Publish Date 1 February 2007 (first published 28 November 2005)
- Publish Status Out of Print
- Out of Print 3 January 2014
- Publish Country US
- Imprint Sterling Juvenile
- Format Paperback
- Pages 96
- Language English