you just let the highlight disappear then delete
From the Google calendar's Settings there is a link to Delete your calendar.
If you want to get rid of the suggestions history ( the box which comes down when you type something) you just hover over the suggestion and press delete or you press the button at the bottom which says delete history.
a) I am supposing you are not the administrator of the Mac b) I do not believe you can delete iTunes from a Mac
dont know either
by sucking your balls
You cannot "Delete" Google. Unless you are planning to nuke the Warehouse in which they store the Website.
Google simbl agent. Goto the website for it. Download the newest package. It has an uninstaller in it. once it downloads run the uninstaller and SIMBL is gone
get into site and delete them
That is something you can't do on your iPhone, but if you have a Mac, you can use the iMovie software on the Mac to delete audio. There might be an iMovie app on the app store, but I am not completely sure if you can delete audio from that. The Mac iMovie software on your Mac might not work either to delete your audio but you can always try
no if you delete something on Google you delete everything.
If you mean browsing history,download history,etc then you should do this on Windows: Press CTRL+Shift+Delete at the same time. I'm not sure about Mac.
You can delete images from Google drive cloud using the Cloud Gallery manager which allows you to manage your contents and delete as well on the Google drive cloud.