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Science Brain Teasers

Science brain teasers require understanding of the physical or biological world and the laws that govern it.

Brain Teasers

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  Titleˆ Popularity Difficulty Submitted  
181 Not So Great Inventions #4 *** * 01/26/04 by od-1
182 Not So Great Inventions #5 *** ** 01/09/04 by od-1
183 Not True *** ** 01/04/06 by metallicman
184 Odd Element Out *** *** 11/24/02 by snaps
185 Odd One Out *** *** 06/28/05 by Riddlerman
186 One Lump or Many? *** ** 10/09/07 by Hrsemn4
187 Opaque Marble Balls *** *** 07/10/02 by im_para_noid
188 Outer Space *** *** 06/07/02 by im_para_noid
189 Overhanging Bricks *** *** 02/22/04 by Jake
190 Paracending *** ** 02/01/03 by skaven
191 Paraffin Lamp *** ** 01/16/03 by hip2b2
192 Pete the Pilot *** ** 02/27/04 by airhead3
193 Photon Emitter *** ** 05/15/04 by od-1
194 Ping Pong in a Tube *** *** 01/26/02 by RayneeDay
195 Pint of Guinness *** *** 04/22/02 by cathalmccabe

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