Cereal and Serial

Cereal means grasses or grains used for food, or a breakfast food made from grain.  It can be an adjective (cereal grains) or a noun (a bowl of cereal).

Serial is an adjective meaning "consecutive."  Things that are serial come in a series, one after another.  Serial television and movie serials come in episodes.

Surreal, an adjective, means fantastical and incongruous, like a pig with wings or a clock face draped over a tree branch.