These made me LOL
(http://i55.photobucket.com/albums/g143/Hagen_ho/other/pro-noob.jpg)
(http://i55.photobucket.com/albums/g143/Hagen_ho/other/n768334863_245872_4192.jpg)
(http://i55.photobucket.com/albums/g143/Hagen_ho/other/n598665648_324562_522.jpg)
(http://i55.photobucket.com/albums/g143/Hagen_ho/other/n598665648_323230_7989.jpg)
(http://i55.photobucket.com/albums/g143/Hagen_ho/other/n598665648_323229_7671.jpg)
Not sure how "real" those (or the ones I'll post) are, but they're funny nonetheless. :)
(http://ulkesh.sidoh.org/~screenshots/8a0c67fcec9f163c9d81dff635e299d9_1202874025.png)
(http://ulkesh.sidoh.org/~screenshots/83044e7c7f61ac9e3463d249ac4a451e_1202874051.png)
(http://ulkesh.sidoh.org/~screenshots/b4828e45bcb0e69c8f9940c989a826a2_1202874068.png)
My favorite:
(http://ulkesh.sidoh.org/~screenshots/c32f2151dc2300efe0b66600cf607ff6_1202874215.png)
(http://ulkesh.sidoh.org/~screenshots/d2da1e0a240dba532370deb10bb47404_1202874134.png)
Source: http://patentpending.blogs.com/patent_pending_blog/2007/02/math_test_blues.html