I answer and they hang up

Rcvd call from this number but no leave MSG ring then hang up.. Stop calling me [***]

Called me at work saying they have a package to deliver to me which was held up in Washington D.C., Then followed up with e-mail asking me to pay delivery charges. But they could not say where or who the package was from. I spammed the e-mail, then they called about an hour later to confirm I got their e-mail. And I asked again, since there was no useful information (other than delivery costs) in the e-mail, who or where the package was from, and they could not answer. They called again, and I told them to stop calling or I would have them arrested.

I got a call from this number asking if I received a check that they want me to cash and they will give me instructions on what to do with the money to help a person that is in great need, angry and poor. I got an envelope from Canada which I'll not open, but they keep on calling me insisting to cash the check to help the needy people.

this caller called and invited me to eat out today 9/5/13 ~ 11:30am PST.  I refused her invitation.  but she talked very nice indeed.  Who is she? who care and who knows LOL.