I watched a comedy show last night and laughed my head off.

He always hits the nail on the head with his comments.

The head of state is responsible for representing the country on the international stage.

I have a splitting headache.

She has her head in the sand and refuses to acknowledge the problems in her relationship.

I will head up the project.

I scratch my head when I'm confused.

Solving this math problem is a real head scratcher.

The crowned head of the country is highly respected.