The Adventures of Sherlock Holmes would be considered o fiction adventure
O mystery
O historical novel

mystery

Explanation:

its not historical because it didn't actually happen and its not in a historical event. and its not fiction avendture because it doesn't have a main quest line that the protaganist follows

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.

i literally just read the book and studied it for months so i could you, but i need to know where these questions are coming from. they are too general.