How about this,

A few lines of lyrics and you have to identify the song (Guitar based songs of course)

Heres my starter for ten

"Imagine a time when it all began
In the dying days of a war
A weapon that would settle the score
Whoever found it first would be sure to do their worst
They always had before..."

Bit easy I think but a simple start for you all to follow....

And no looking it up on the web