How high is up? Why is the sky blue? Do fish sleep? Where do babies come from? How do ships float? How do planes stay in the air? Why are you laughing? Why are you crying? Are we there yet? What do I care? Who's there? Who's calling? Who's at the door? Where are you from? Where do you live? Where is my pencil? Who won? Who lost? Who's playing? Do I know you? Have we met? What was your name again? Do you have the time? What time is it? What day is it? What is the date? How are you? How do you do? What do you do? How old are you? How tall are you? How much do you weigh? Are you married? Do you have any children? Do you love me? Can you hear me? Can you see me? What's that smell? What are you cooking? Can I borrow your pencil? Can I borrow $5? What are you watching? What's on TV?