I never use guns. Can I use a bow and arrow and still sell the tongue?

The most humane way to slaughter an animal is using a solid-point bullet from a gun capable of at least 300 to 1000 ft/lb of velocity to effectively ensure a quick kill. An arrow, even from a high-powered compound bow, won't guarantee such a kill. And, the arrow won't be able to penetrate the skull, it will need to be fired so that you're aiming for the point behind the shoulder where the heart and lungs are. The animal won't go down as quickly, but you still will be able to use the tongue though (selling may be illegal, though, because of state/federal inspection requirements). Otherwise, a gun is still a better tool for a much more quicker kill. Reserve your bow and arrows for wild game.