The intelligence of animals can vary greatly, from the simpler creatures which are driven purely by instinct, to the highly intelligent great apes which are capable of critical thinking and reasoning skills.
So what about snakes? Are snakes intelligent?
For the most part, no they are not. Having only a reptilian brain, snakes lack the parts of the brain which allow organisms such as us to think the way we do.
Snakes are driven almost purely by instinct, and are not capable of higher forms of thinking. They seek only the most basic of survival needs, such as food and reproduction.