Yes but it's illegal unless you have their consent. If you have physical access to their computer you could try these, which I think are legal...
If you want to see what they're typing then you can put a keylogger on their computer. If you want to see what sites they've been to then you can check the history of the computer.
Go on the website on your computer/laptop and click on the user of your choice, on their profile you will see their background. Hope this helped
Look on Google maps, someones probably tagged it
The kind of computer cable you need, utlimately depends upon what kind of computer you have. You can always look for computer cables on www.google.com, just type in the type of computer you own and cables and many results should pop up.
Just look it up on computer when it ask you for the kind of launge
You look on the tracker.
Yes, but it is illegal and an invasion of their privacy.
No
you can't.
No unless you've logged in to them
Look at the death certificate
answering incoming and outgoin calls
Look in the account information when they are logged on