The Yahoo! 15th Birthday Twitter Trivia Challenge!

To celebrate our 15th Birthday we are hosting a trivia challenge on Twitter (say that five times fast!) featuring 15 questions across our global properties, helping you search and discover all the exciting things Yahoo! has to offer!

How the trivia challenge works: We will post each of the 15 questions on our official Yahoo! Twitter account ( every hour, starting on March 2nd, 2010 at 8 AM PT. Each question will start with a question number, such as “Q1”, “Q2”, and so on. Find the answer to each question by using the link we provide to the Yahoo! site where the answer can be found. Tweet your response to @yahoo using the hashtag #Y15a. Start your answer with the letter “A” (for “answer”), and the number of the question you’re answering. So, for example, if you’re answering question 5, your reply should look something like:

A5 <this is your answer to Question 5> #y15a.

Easy enough? You can get one entry for each question you answer, for up to 15 possible entries in the challenge. You have until 8 AM on March 5, 2010 to get all of your answers back to us. After the challenge is over, we’ll select the winners from among all the eligible entries we received during the entry period.

What you are playing for: One Grand Prize winner will receive a Nikon Cool Pix S230 Yahoo! Camera and a Jawbone Earcandy Bluetooth Headset (ARV $305). Plus, four first prize winners will each receive a Mimobot Yahoo! USB flash drive. (ARV $20)

Anything else you should know? Our friend Matt the lawyer would also like you know that there’s no purchase necessary and the challenge is void where prohibited. The challenge is open to legal residents of the fifty United States, the District of Columbia, and Canada, excluding the Province of Quebec, who are 18 and older.

Happy hunting!

Start now by following us on Twitter: @Yahoo

For the complete list of rules, click here