Does

Does killing time damage eternity?

If necessity is the mother of invention,

If necessity is the mother of invention, why does so much unnecessary stuff get invented?

Which of the Himalayas is the shortest?

If FedEx and Ups merged, would they call it Fed UP?

You know that little indestructible black box that is used on planes – why can’t they make the whole plane out of the same substance?

If you try to fail, and succeed, which have you done?

If fire fighters fight fire and crime fighters fight crime, what do freedom fighters fight?

If you didn’t get caught, did you really do it?

How much deeper would the ocean be without sponges?