Answer:
I cannot be bought cannot be sold even if Iām sometimes made of gold.
My first two letters say my name. My last letter asks a question. What I embrace I destroy.
I am a ship that can be made to ride the greatest waves. I am not built by objects but built by minds.
What can one catch that is not thrown?
I save lives on the ground and in the air
It rows quickly with four oars but never comes out from under his own roof. What is it?