For 10 points, name these beings, one of which Jack kills after he climbs a beanstalk.
One of these creatures tries to shear Arthur's beard to patch a cloak and was named Rhitta Gawr. One of these creatures named Ysbaddaden assigns the task of hunting the boar Twrch Trwyth ["turk truith"] for Culhwch ["cul-hook"] to marry Olwen. The head of one of these beings was used to protect (*) Britain, and Finn McCool built their namesake "Causeway." Bran the Blessed was one of these beings, and many Cornish myths describes one person robbing and killing several of these beings, including one who threatens to grind bones into bread and says "Fee Fi Fo Fum." For 10 points, name these beings, one of which Jack kills after he climbs a beanstalk.
One of these creatures tries to shear Arthur's beard to patch a cloak and was named Rhitta Gawr.
giants