A sword is related to slaughter in the same way scalpel is related to

Indolence is related to work in the same way taciturn is related to........

Preface is to book as overture is to.........

Choose the correct alternative for the given relation.

Magazine : Periodical

Orange is to Peel as Tooth is to.........?

An $'Island'$ is related to $'Sea'$ in the same way as an $'Oasis'$ is related to......?