UnScramble this Word: l s u l b?

Questions

Cephalalgia refers to a(n)....?

Cerberus guarded the gates of the underworld in Greek mythology.what kind of creature was this three headed being?

Certain _____ can be frozen solid then thawed, & continue living?

Cetology is the study of ________.?

Channel, between the southern tip of Florida & the island of Cuba, linking the Atlantic Ocean & the Gulf of Mexico?