| #248 | Hypotheticals | Apr 13, 2007 |
| #247 | Factoring the Time | Apr 11, 2007 |
| #246 | Labyrinth Puzzle | Apr 9, 2007 |
| #245 | Floor Tiles | Apr 6, 2007 |
| #244 | Tabletop Roleplaying | Apr 4, 2007 |
| #243 | Appropriate Term | Apr 2, 2007 |
| #242 | The Difference | Mar 30, 2007 |
| #241 | Battle Room | Mar 28, 2007 |
| #240 | Dream Girl | Mar 26, 2007 |
| #239 | Blagofaire | Mar 23, 2007 |
| #238 | Pet Peeve #114 | Mar 21, 2007 |
| #237 | Keyboards are Disgusting | Mar 19, 2007 |
| #236 | Collecting Double-Takes | Mar 16, 2007 |
| #235 | Kite | Mar 14, 2007 |
| #234 | Escape Artist | Mar 12, 2007 |
| #233 | A New CAPTCHA Approach | Mar 9, 2007 |
| #232 | Chess Enlightenment | Mar 7, 2007 |
| #231 | Cat Proximity | Mar 5, 2007 |
| #230 | Hamiltonian | Mar 2, 2007 |
| #229 | Graffiti | Feb 28, 2007 |
| #228 | Resonance | Feb 26, 2007 |
| #227 | Color Codes | Feb 23, 2007 |
| #226 | Swingset | Feb 21, 2007 |
| #225 | Open Source | Feb 19, 2007 |
| #224 | Lisp | Feb 16, 2007 |
| #223 | Valentine's Day | Feb 14, 2007 |
| #222 | Small Talk | Feb 12, 2007 |
| #221 | Random Number | Feb 9, 2007 |
| #220 | Philosophy | Feb 7, 2007 |
| #219 | Blanket Fort | Feb 5, 2007 |
| #218 | Nintendo Surgeon | Feb 2, 2007 |
| #217 | e to the pi Minus pi | Jan 31, 2007 |
| #216 | Romantic Drama Equation | Jan 29, 2007 |
| #215 | Letting Go | Jan 26, 2007 |
| #214 | The Problem with Wikipedia | Jan 24, 2007 |
| #213 | Ghostbusters Marathon | Jan 22, 2007 |
| #212 | Brain | Jan 19, 2007 |
| #211 | Hamster Ball Heist | Jan 17, 2007 |
| #210 | 90's Flowchart | Jan 15, 2007 |
| #209 | Kayak | Jan 12, 2007 |
| #208 | Regular Expressions | Jan 10, 2007 |
| #207 | What xkcd Means | Jan 8, 2007 |
| #206 | Reno Rhymes | Jan 5, 2007 |
| #205 | Candy Button Paper | Jan 3, 2007 |
| #204 | America | Jan 1, 2007 |
| #203 | Hallucinations | Dec 29, 2006 |
| #202 | YouTube | Dec 27, 2006 |
| #201 | Christmas GPS | Dec 25, 2006 |
| #200 | Bill Nye | Dec 22, 2006 |
| #199 | Right-Hand Rule | Dec 20, 2006 |