Hercules' myths

Here are the canonical 12 labors

1. Slay the Nemean Lion.
2. Slay the 9-headed Lernaean Hydra (and the crab who helped the hydra).
3. Capture the Golden Hind of Artemis.
4. Capture the Erymanthian Boar.
5. Clean the Augean stables in a single day.
6. Slay (or scare away) the Stymphalian Birds.
7. Capture the Cretan Bull.
8. Get the Man-eating Mares of Diomedes.
9. Obtain the Girdle of the Amazon Queen.
10. Obtain the Cattle of Three-headed Geryon.
11. Get the Apples of the Hesperides.
12. Capture Cerberus.

There are many other stories about Hercules (Herakles in transliterated Greek). One of the best websites on myth is http://www.theoi.com/greek-mythology/heracles.html which has many ancient Roman and Greek texts in translation. For example, they have Diodorus Siculus' history of Heracles (yes, the Greeks thought he was real although they did not agree about who exactly he was--or they were, since there were more than one Heracles--or what he did):
http://www.theoi.com/Text/DiodorusSiculus4A.html#8