Was called from this number, but gave no responce to 'Hello'Call was then ended after several seconds

Just received a call from this number. ?No one there when I answered.  Calling it back gets an intercept "The number you have called is invalid.  Please check the number and try your call again."

The other dayy this number called my house asking for my mom or dad and i  said they wernt here and they would be home after 7 30 and he said ok..whats your number and i said 905 blah blah blah..And yeah and thenn he said noo i meann ur cell phoen and im liek whya nd hes like becaus i want a friend ship with you..and he started to say dirty things and flirt with me on the phone ..Who is this and when u call back it says that this number doesnt exist?? :S

This number just called and they said that i won a prize and then he sid that he was jokin and then they hung up!?

Was called from this number, but gave no responce to 'Hello'
Call was then ended after several seconds

Just received a call from this number.  No one there when I answered.  Calling it back gets an intercept "The number you have called is invalid.  Please check the number and try your call again."