Answer:
Soldiers fight it but never changes.
Bobby likes Jimmy but not Joe, apples but not pears, jeeps but not vans, shinny but not hockey, tennis but not squash. Who will he like, Sara or Sally?
Who has married hundreds but always been single?
Can describe a distress signal or flashy accessories.
Which weighs more? A pound of iron or a pound of feathers?
Boxers do this for a living and kids do it in the backseat for free