Once a question on yahoo answers is deleted, does is still stay on googles search index?

No you might have a chance because it takes a pretty long time for the question database to be deleted so you can still search it up. If you delete your Y!A account then probably then it will get deleted right away but the question still might be in google. If it got deleted by violation then it will be deleted right away i do not think it will show up in google but if you just deleted it then you people still have some time to see your question.

Hope this helps

Not necessarily. Even when something is is deleted,. there's still parts of it left on a hard drive. It may be fragmented.and dispersed to different locations on the hard-drive, but skilled IT technicians or IT engineers can recover at least parts of deleted files IF THERE IS A NEED. Watch "Warfare" (either version) "Eagle Eye" or "The Web". The movies are fiction, but they are very realistic scenarios of possible real life situations that are all too possible. "The Web is based on a real life satiation of a real live human being.. That's why Washington D.C.is on total security lock down 3 hours before a State of the Union address and why one cabinet member ALWAYS watches the State of the Union address from a location not IN the capitol building. The Capitol becomes a prime terrorist target during a State of the Union address. Anything you do online CAN be traced back to you, NOT WILL BE. Disclaimer:I am NOT an IT tech or IT engineer.

doubt it,it might still be on but i think it would just it was deleted