Used to ask whether someone has any siblings.

(idiomatic) A situation where either choice results in a negative outcome; dilemma.

(informal) Used as a rhetorical question to confirm agreement, knowing or understanding at the end of a statement.

It is better to do something oneself than to rely on others to do it well.

(rhetorical question, colloquial) Used to indicate that a previous comment is irrelevant or non sequitur.

Alternative form of damned if one does and damned if one doesn't

Two parts of an organization are unaware of each other's activities.

(economics) An index created by the World Bank, where higher rankings indicate better, usually simpler regulations for businesses and stronger protections of property rights.

Synonym of know what one is about

Asks if someone is busy tomorrow, possibly to invite them to do something if they are available. ("Tomorrow" can be replaced by other dates, such as "are you doing anything on the weekend", etc.)