Ridiculous Riddles Selections from the Nonsense Book Paperback – January 1, 1972 by Duncan Emrich
 
"What has no legs but walks? A shoe. What has a mouth but cannot talk? A River. What's four feet sitting on four feet waiting for four feet? A cat on a chair waiting for a mouse!! Here are dozens of riddles to tickle yourself with or try on your friends. Fun for all!"
5.2