All MCQs

The two groups of writers mentioned could be different individuals.
An overlap between teachers and poets is possible but not necessary.

The expensive stationery items may or may not include pencils.
The premises do not establish a definite overlap.

Every surgeon is a doctor, and no doctor is untrained.
Therefore, no surgeon can be untrained.

The books that are novels belong to the fiction category.
Thus, some books are fiction.

The managers mentioned are also engineers.
Because all engineers are graduates, those managers are graduates.

The pets that are cats cannot be birds.
Therefore, at least some pets are not birds.

Roses are contained within flowers, and flowers within plants.
Therefore, every rose must be a plant.

A's two immediate neighbors occupy one seat on each side.
If B is clockwise, C must be counterclockwise.

A at the north side faces south; A's left points east.
B occupies the east side, so B is to A's left.

For outward-facing people, left corresponds to clockwise movement.
Second to the left therefore means two clockwise seats.

For people facing the center, right is counterclockwise.
Three counterclockwise steps equal five clockwise steps in an eight-seat circle.

An exact opposite seat requires an even number of equally spaced positions.
A seven-seat circle has no diametrically opposite seat.