(C) A zealot is a person who is fervent – that is, deeply passionate about his beliefs. A lecher is someone who is lustful – that is, full of unrestrained sexual desire.
FERVENT: having or showing great warmth of feeling; intensely devoted or earnest; ardent
Savory: pleasant, agreeable, attractive, etc.
Epicure: a person who enjoys and has a discriminating taste for fine foods and drinks
Lecher: a man who indulges in lechery; lewd,
grossly sensual man

(A) A musket is a particular kind of firearm – an old-fashioned one dating back to the 17th or 18th centuries. (Pictures of the Pilgrims often show them carrying muskets.) Similarly, a galleon is an old-fashioned kind of vessel, a ship that was used by explorers and merchants in the 17th and 18th centuries.
Vessel: Bible a person thought of as being the receiver or repository of some spirit or influence !a vessel of wrath"
Galleon: a large sailing ship with three or four masts and a high forecastle and stern, developed in the 15th and 16th cent., and used as both a warship and a trader
Domicile: Law one‘s fixed place of dwelling, where one intends to reside more or less permanently
Sled: any of several types of vehicle mounted on runners for use on snow, ice, etc.: small sleds are used in the sport of coasting, large ones (also called sledges), for carrying loads >
Appliance: [Rare] the act of applying; application
Dishwasher: a machine for washing dishes, cooking
utensils, etc.

(E) To salvage a wreck is to explore it ( by diving ) and remove valuable or historic items from it for sale or safekeeping. In the same way, to excavate a ruin is to explore it (by digging) and remove valuable or historic items from it for sale or safekeeping.
Bury: borough in NW England, part of Greater Manchester: pop. 68,000
Treasure: any person or thing considered very valuable
Retrieve: to set right or repair (a loss, error, etc.); make good
Excavate: to make a hole or cavity in, as by digging; hollow out
Ruin: orig., a falling down, as of a building, wall, etc.

(D) Temperamental and stolid describe opposite qualities; a temperamental person is filled with moods that rapidly change and that he expresses freely, while a stolid person has few moods and keeps his feelings mostly to himself. Mercurial and impassive have much the same relationship; a mercurial person is flighty and changeable, while an impassive person rarely changes his demeanor.
Brusque: rough and abrupt in manner or speech; curt Also brusk
Hostile: having or showing ill will; unfriendly; antagonistic
Sedate: 5L sedatus, pp. of sedare, to settle, caus. of sedere, to SIT6 calm, quiet, or composed; esp., serious and unemotional; staid; decorous
Vivacious: full of life and animation; lively
Mercurial: having qualities attributed to the god Mercury or supposedly influenced by the planet Mercury; eloquent, clever, shrewd, thievish, etc.
Intellectual: a person engaged in intellectual work.
a member of the intelligentsia

(D) An enigma (a difficult puzzle) is likely to leave you feeling mystified; a dilemma (a difficult choice) is likely to leave you feeling undecided.
Apathetic: feeling little or no emotion; unmoved
Deception: to interpret wrongly; understand or explain incorrectly
Misinterpreted: to interpret wrongly; understand or explain incorrectly
Dilemma: an argument necessitating a choice between equally unfavorable or disagreeable alternatives
Irritated: not interested; indifferent; listless