Did you know how to ride a bike?

Are you intelligent?

Do teachers help you learn?

Is the sky blue?

Does all life have meaning?

Do you have nightmares?

Are you a reliable friend?

Did you ever stalk someone online?

Can you act a thriller movie?

Are there 80 minutes in an hour?

Do you ever talk to yourself?

Have you ever fallen asleep at school or work?

Can you cry underwater?

Do you think that a man and a woman can be exclusively friends?

Do you have a sister?

Do you live in San Francisco?

Do you think a mirror has a color?

Are you single?

Did George Washington own a computer?

Are flags fun?

Do cats climb trees?