a person who performs more than one task at the same time is usually called multitasker
They call this multitasking.
A multitask-er. However, most people do this all the time - walk and talk etc. so it it is not unusual.
You would call this person a child. By the time a child reaches puberty, he or she knows.
You can call her a lot of things, none of which are very nice however...
no but you'll know when your on a call and another call comes in and you see the same person your talking too coming in as a call, not the person calling you at the time.
Ambidextrous (I think that's how you spell it)
A smart person who doesn't interrupt the singer.
Contemporaneous means existing or occurring at the same time.
The same things I would say to any person I'm meeting for the first time. After all, that's what she is--a person. :)
If two things are happening simultaneously, it means that they are happening at the same time. For example, if you said something in response to someone and the person next to you said the same thing at the same exact time, that would be happening simultaneously.
That depends on what you mean. On the phone that is making the call, and on that person's phone bill, the call will show up at the time in the time zone from which the call was placed. The phone of the person receiving the call, and that person's phone bill (if, for example, you pay for incoming calls on a cellphone), will show the call at the time it was received.
When one person plays chess against many opponents at the same time is called a simul.