The first of April, better known as "April Fools' Day," is fast approaching. Learn the history behind this day at http://www.infoplease.com/spot/aprilfools1.html .
One way to have some harmless fun is to read a riddle book. We have several to choose from that will take you beyond "your shoe's untied":
Creepy Riddles by Kathy Hall
My First Riddles by Judith Hoffman Corwin
Riddle Road and With One White Wing both by Elizabeth Spires
Unriddling: All Sorts of Riddles to Puzzle You compiled by Alvin Scwartz
Behind the King's Kitchen Door by William Jay Smith
Keep 'em Laughing by Louise Phillip
You can also entertain yourself with these books:
Mother Goose Unplucked and Funny Business both by Helaine Becker
Scranimals by Jack Prelutsky
Timothy Tunny Swallowed a Bunny by Bill Grossman
Merry Merry Fibruary (and I didn't spell it wrong) by Doris Orgel
However you choose to spend the day, have good natured fun and hope that Mother Nature doesn't play a weather joke on us all!