Siri is awesome and will answer most of your questions but sometimes she can lead you astray. Like when you say to Siri "One-Zero-Eight".
It turns out that 108 is the Indian equivalent of 911, and saying it to Siri will have her call emergency services!!!! Be careful and watch this!
Other things not to say to Siri are other numbers like 112, 110, 999 and 000 which reach out to emergency services in other countries.