| Source of café connections | 29 |
| Source of cafeteria coffee | 26 |
| Source of caffeine | 18 |
| Source of calling | 17 |
| Source of cameline oil | 22 |
| Source of campaign spending | 27 |
| Source of campsite light | 24 |
| Source of Canada's symbolic leaf | 36 |
| Source of canola | 16 |
| Source of car tunes | 19 |
| Source of car wreck evidence | 28 |
| Source of Caravane cheese | 25 |
| Source of carbs | 15 |
| Source of carnal desires? | 25 |
| Source of cash | 14 |
| Source of casual fare | 21 |
| Source of caviar | 16 |
| Source of celebrity playlists | 29 |
| Source of certain beans | 23 |
| Source of change | 16 |
| Source of charcoal wood | 23 |
| Source of cheap furniture | 25 |
| Source of cheap oils? | 21 |
| Source of children's stories | 32 |
| Source of chocolate | 19 |
| Source of chop-suey sauce | 25 |
| Source of chutzpah | 18 |
| Source of cider | 15 |
| Source of cinnamon | 18 |
| Source of cinnamon spice | 24 |
| Source of Clampett wealth, on TV | 32 |
| Source of classic hits? | 23 |
| Source of Cleopatra's downfall | 34 |
| Source of coal | 14 |
| Source of coconut oil | 21 |
| Source of codeine | 17 |
| Source of coke | 14 |
| Source of cold comfort? | 23 |
| Source of cold cubes | 20 |
| Source of collectible deposits | 30 |
| Source of college funding? | 26 |
| Source of colorful autumn foliage | 33 |
| Source of comfort | 17 |
| Source of commuters | 19 |
| Source of conceit | 17 |
| Source of concern | 17 |
| Source of conflict | 18 |
| Source of conflict, in antiquity | 32 |
| Source of confusion | 19 |
| Source of continual irritation | 30 |
| Source of continual suffering | 29 |
| Source of continued wealth | 26 |
| Source of contraband cigars | 27 |
| Source of cork | 14 |
| Source of corruption | 20 |
| Source of creosote | 18 |
| Source of cross-grained wood | 28 |
| Source of cruise music? | 23 |
| Source of cubes | 15 |
| Source of current buzz | 22 |
| Source of current events? | 25 |
| Source of current information? | 30 |
| Source of D.C. funding | 22 |
| Source of dates | 15 |
| Source of dates, for some | 25 |
| Source of Davy Crockett's cap | 33 |
| Source of DC funding | 20 |
| Source of despondency | 21 |
| Source of devastation | 21 |
| Source of dietary fiber | 23 |
| Source of dietary sodium | 24 |
| Source of direct access | 23 |
| Source of disruption to satellites | 34 |
| Source of DNA evidence, often | 29 |
| Source of dog distress | 22 |
| Source of down | 14 |
| Source of downloadable tunes | 28 |
| Source of dragon fruit | 22 |
| Source of durable wood | 22 |
| Source of durable wood? | 23 |
| Source of DVD warning messages | 30 |
| Source of DVD warnings | 22 |
| Source of easy income | 21 |
| Source of easy money | 20 |
| Source of eco-friendly ink | 26 |
| Source of edible oil | 20 |
| Source of Egyptian lethal injection | 35 |
| Source of electricity | 21 |
| Source of embarrassment | 23 |
| Source of emergency funds | 25 |
| Source of emetine | 17 |
| Source of endless funds | 23 |
| Source of energy | 16 |
| Source of energy, in astrology | 30 |
| Source of enjoyment | 19 |
| Source of enlightenment | 23 |
| Source of Erebus and Gaia, in Greek myth | 40 |
| Source of ergot poisoning | 25 |
| Source of erratic shots? | 24 |
| Source of ethanol | 17 |