How to run method with arguments in separate thread using Parallel Tasks

here is sample of code for

private void MethodStarter()
{
Task myFirstTask = Task.Factory.StartNew(Method1);
Task mySecondTask = Task.Factory.StartNew(Method1);
}

private void Method1()
{
 // your code
}

private void Method2()
{
 // your code
}

i am looking for code snippet for Parallel Tasks by which i can do the callback and pass argument to function also. can anyone help.