These first 2 links will give you a different set of testers each time you refresh their pages: Random IQ Test (10 puzzles at once) Random IQ Tester (1 puzzle at a time) These next 3 links will also give you different testers when you refresh their pages, but of only the specified difficulty levels: Easy Random IQ Tester (easy puzzles only) Medium Random IQ Tester (medium puzzles only) Hard Random IQ Tester (hard puzzles only) Below are 125 pre-specified tester puzzles. However, there are over 300 testers altogether. Those not found below can be found through the "random" links above. IQ Tester #125 (easy) IQ Tester #124 (easy) IQ Tester #123 (easy) IQ Tester #122 (easy) IQ Tester #121 (medium) IQ Tester #120 (easy) IQ Tester #119 (medium) IQ Tester #118 (medium) IQ Tester #117 (medium) IQ Tester #116 (medium) IQ Tester #115 (easy) IQ Tester #114 (easy) IQ Tester #113 (medium) IQ Tester #112 (medium) IQ Tester #111 (easy) IQ Tester #110 (medium) IQ Tester #109 (hard) IQ Tester #108 (medium) IQ Tester #107 (easy) IQ Tester #106 (medium) IQ Tester #105 (medium) IQ Tester #104 (easy) IQ Tester #103 (easy) IQ Tester #102 (hard) IQ Tester #101 (easy) IQ Tester #100 (medium) IQ Tester #99 (easy) IQ Tester #98 (medium) IQ Tester #97 (easy) IQ Tester #96 (hard) IQ Tester #95 (easy) IQ Tester #94 (easy) IQ Tester #93 (easy) IQ Tester #92 (medium) IQ Tester #91 (medium) IQ Tester #90 (easy) IQ Tester #89 (medium) IQ Tester #88 (easy) IQ Tester #87 (medium) IQ Tester #86 (medium) IQ Tester #85 (hard) IQ Tester #84 (easy) IQ Tester #83 (medium) IQ Tester #82 (easy) IQ Tester #81 (easy) IQ Tester #80 (medium) IQ Tester #79 (easy) IQ Tester #78 (medium) IQ Tester #77 (medium) IQ Tester #76 (medium) IQ Tester #75 (medium) IQ Tester #74 (medium) IQ Tester #73 (medium) IQ Tester #72 (medium) IQ Tester #71 (easy) IQ Tester #70 (medium) IQ Tester #69 (medium) IQ Tester #68 (easy) IQ Tester #67 (medium) IQ Tester #66 (medium) IQ Tester #65 (medium) IQ Tester #64 (easy) IQ Tester #63 (easy) IQ Tester #62 (easy) IQ Tester #61 (easy) IQ Tester #60 (medium) IQ Tester #59 (easy) IQ Tester #58 (easy) IQ Tester #57 (medium) IQ Tester #56 (hard) IQ Tester #55 (medium) IQ Tester #54 (hard) IQ Tester #53 (medium) IQ Tester #52 (hard) IQ Tester #51 (medium) IQ Tester #50 (hard) IQ Tester #49 (hard) IQ Tester #48 (medium) IQ Tester #47 (medium) IQ Tester #46 (medium) IQ Tester #45 (easy) IQ Tester #44 (easy) IQ Tester #43 (easy) IQ Tester #42 (easy) IQ Tester #41 (medium) IQ Tester #40 (hard) IQ Tester #39 (easy) IQ Tester #38 (medium) IQ Tester #37 (medium) IQ Tester #36 (medium) IQ Tester #35 (easy) IQ Tester #34 (medium) IQ Tester #33 (easy) IQ Tester #32 (hard) IQ Tester #31 (medium) IQ Tester #30 (easy) IQ Tester #29 (hard) IQ Tester #28 (hard) IQ Tester #27 (medium) IQ Tester #26 (hard) IQ Tester #25 (easy) IQ Tester #24 (medium) IQ Tester #23 (easy) IQ Tester #22 (easy) IQ Tester #21 (hard) IQ Tester #20 (medium) IQ Tester #19 (easy) IQ Tester #18 (medium) IQ Tester #17 (hard) IQ Tester #16 (easy) IQ Tester #15 (easy) IQ Tester #14 (hard) IQ Tester #13 (hard) IQ Tester #12 (easy) IQ Tester #11 (easy) IQ Tester #10 (hard) IQ Tester #9 (hard) IQ Tester #8 (medium) IQ Tester #7 (medium) IQ Tester #6 (medium) IQ Tester #5 (medium) IQ Tester #4 (medium) IQ Tester #3 (easy) IQ Tester #2 (hard) IQ Tester #1 (medium)