Using your Head is Permitted

Links to past riddles and solutions are from this page. If you know any good riddles that you think might fit in, you're welcomed to send them to the puzzlemaster at riddlesbrand.scso.com. The puzzlemaster is Michael Brand.

May 2012	Riddle	Solution	Two Polygons
April 2012	Riddle	Solution	Natural Partitions
March 2012	Riddle	Solution	Rectangling the Rectangle
February 2012	Riddle	Solution	Space-efficient Exponentiation
January 2012	Riddle	Solution	From A to B
December 2011	Riddle	Solution	Post-office Tetrahedra
November 2011	Riddle	Solution	Post-office Volumes
October 2011	Riddle	Solution	Post-office Dilemma
September 2011	Riddle	Solution	Gladiators
August 2011	Riddle	Solution	Equinox Counting
July 2011	Riddle	Solution	Bananas
June 2011	Riddle	Solution	Improved FFT
May 2011	Riddle	Solution	Fun with Trigonometry
April 2011	Riddle	Solution	Cyclone Frogs
March 2011	Riddle	Solution	Lights-Out
February 2011	Riddle	Solution	Tea or Coffee
January 2011	Riddle	Solution	Prepostria
December 2010	Riddle	Solution	2-bend Graph Embeddings
November 2010	Riddle	Solution	DNFs and Symmetric Functions
October 2010	Riddle	Solution	Abraham and Benjamin
September 2010	Riddle	Solution	Gloved Prisoners
August 2010	Riddle	Solution	Tetrahedron Crossing
July 2010	Riddle	Solution	A Tribute to Gardner
June 2010	Riddle	Solution	Cyclic Permutations
May 2010	Riddle	Solution	Segment-preserving Mappings
April 2010	Riddle	Solution	Self Assembled Numbers
March 2010	Riddle	Solution	Taylor Series
February 2010	Riddle	Solution	Laura Sort
January 2010	Riddle	Solution	Encyclopedia Sort

(Riddles from previous years have been archived.)

Enjoy!