My mother cooked a tasty dinner yesterday.
* General:
Did my mother cook a tasty dinner yesterday?
* Special:
When did my mother cook a tasty dinner?
What did my mother cook yesterday?
What kind of dinner did she cook?
* Special, to the Subject:
Who cooked a tasty dinner yesterday?
Whose mother cooked a tasty dinner yesterday?
* Alternative:
Did my mother cook a tasty dinner yesterday or the day before yesterday?
Did my mother or my cousin cook a tasty dinner?
* Tag // Disjunctive:
My mother cooked a tasty dinner yesterday, didn't she?
