no
Considering its 2012, no sweetie, it's not
No The world will not end for at least another 3-5 Billion Years.
It may or may not be true.
A conditional statement may or may not be true.
true
May be unrepresentative of what is generally true.
That is not true.
true
may be. This can be true but scientists had not found it totally.
True
True
A common practice which may or may not be true or have practical value is called tradition. Another word to describe it may be custom.