True/False questions examine the differences between hot and cold climate cultures, communication, groups, and cultural context.
In hot climate cultures a yes may not be an answer to a question but the fulfillment of a social obligation to be helpful.
In cold climate cultures direct communication is usually prefered. An honest direct answer is expected and not considered a reflection of personal feelings.
In some places the importance of being sociable and establishing a relationship take priority over efficiency and time management.
It may be considered polite to decline when asked by a host, if you would like to join them for dinner or a cup of tea.