Question mark (?)

a.     Used to pose a question or to express an editorial doubt.

e.g. The Smiths came to Japan first in 1950? by boat.

When did you first come to Japan?

b.     Place the question mark inside quotation marks, parentheses, or brackets when it is part of the quoted or parenthetical material. (As above.)

c.      Place it outside quotation marks when quoted material isn’t a question.

e.g. When did you first hear “konnichiwa”?

d.     Indirect and rhetorical questions do not need a question mark.

e.g. Gary asked if he could go to the writing conference.