FOR or SINCE ...        Which is correct?

 for   since    |    eleven years

 for   since    |    ages

 for   since    |    nine thirty

 for   since    |    a really long time

 for   since    |    we found the money

 for   since    |    Easter Sunday

 for   since    |    ten seconds

 for   since    |    a minute

 for   since    |    Friday night

 for   since    |    June 23rd

 for   since    |    some hours

 for   since    |    four years ago

 for   since    |    a week

 for   since    |    three days

 for   since    |    my birthday

 for   since    |    Dad came home

 for   since    |    midnight

 for   since    |    six months

 for   since    |    our car was stolen

 for   since    |    a century