He did 12 labors. Here are all 12:
1. The killing of the lion at Nemea
2. The slaying of Hydra the Monster with 9 heads
3. Taking the golden-horned stag of Cerynitia
4. Capturing the wild boar of Erymanthus
5. Cleaning up the Augean Stables
6. Slaying the carrion birds of Stymphabus
7. Capturing the Cretan Bull
8. Capturing the wild horses of diomedes
9. Bringing the girdle of Hippolyta, Queen of the Amazons
10. Bringing the Flocks of Geryon
11. Fetching the 3 golden apples of the Hesperides
12. Fetching the 3 Headed-dog Cereberus from the Underworld.