Imagine this: You are standing on the corner waiting for the bus. A man walks up and asks, "What time is it?" You answer politely, but can't help thinking "That was kind of rude ...". If the man had asked: "Excuse me, do you know what time it is?", you'd probably feel that the man was polite. Direct questions (i.e. What time is it?) are often considered impolite when speaking to strangers. Indirect questions (i.e. Do you know what time it is?) are often preferable when speaking to those we don't know. If you are already familiar with indirect questions you might want to try this indirect questions quiz.