Do you want to know how to run a winning lemonade stand this summer? Ask last year's Grand Prize winner, Siena from Washington. She'll be here all summer to answer your questions about what it takes to run a successful lemonade stand.

Have a question for Siena?

Use the form below to ask your questions. Be sure to give us your name and e-mail address so that we can follow up with you or send a response directly. Siena won't be able to get to all of your questions, but she will try to address as many as possible, posting the Q&As here on the Ask Siena page.