What is higher without a head than with a head?!

Question: What is higher without a head than with a head!?
Answers:

A pillow!.Www@Enter-QA@Com

A woman!. If she needs to kneel to give it!.Www@Enter-QA@Com

I have no freakin clue!!Www@Enter-QA@Com

A boat!. Www@Enter-QA@Com

a glass of beerWww@Enter-QA@Com

dont get it!.Www@Enter-QA@Com

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