13 Dec '12 02:58>2 edits
Each pair of images combine to make a chess-related idea. None of them are really that hard, if you think about it. Add your own as well.
Riddle number one:
http://24.media.tumblr.com/tumblr_mdhmznA44o1rutrxwo2_1280.jpg
http://www.mytinyphone.com/uploads/users/tyroneford/127886.jpg
Number two:
http://thepostcool.files.wordpress.com/2010/09/british_bobby.jpg
http://www.bostonboat.com/images/homepage_slideshow_9-2011/fish-2010-214.jpg
Number three:
http://maximizeu.com/wp-content/uploads/2010/07/moldy_bread-225x187.jpg
http://p.twimg.com/Ak0fG9rCAAE51GC.jpg
Number four:
http://media.treehugger.com/assets/images/2011/10/coal-miner-01.jpg
http://2.bp.blogspot.com/-xyL0o_FQpfk/Ttuwcef0x3I/AAAAAAAAAbY/QNxgNqOepHU/s1600/RackMultipart20110421-4442-19ufzxg-0_original..jpeg
Riddle number one:
http://24.media.tumblr.com/tumblr_mdhmznA44o1rutrxwo2_1280.jpg
http://www.mytinyphone.com/uploads/users/tyroneford/127886.jpg
Number two:
http://thepostcool.files.wordpress.com/2010/09/british_bobby.jpg
http://www.bostonboat.com/images/homepage_slideshow_9-2011/fish-2010-214.jpg
Number three:
http://maximizeu.com/wp-content/uploads/2010/07/moldy_bread-225x187.jpg
http://p.twimg.com/Ak0fG9rCAAE51GC.jpg
Number four:
http://media.treehugger.com/assets/images/2011/10/coal-miner-01.jpg
http://2.bp.blogspot.com/-xyL0o_FQpfk/Ttuwcef0x3I/AAAAAAAAAbY/QNxgNqOepHU/s1600/RackMultipart20110421-4442-19ufzxg-0_original..jpeg