How Intelligent are Cats?

Interesting article discussing intelligence tests on cats.
Do Cats Have Intelligence/How Intelligent Are Cats?
Cat owners often claim that cats are too intelligent to do the sort of tricks that dogs do willingly. Others believe cats are unintelligent because it’s harder to train them to do tricks. In this article I aim to explain some of these differences and explore feline intelligence and the limitations on feline intelligence. This also means looking at how cats see the world and at some aspects of natural cat behaviour.
Complex Learning and Making Decisions
Trial and Error and Learning Through Observation
Counting Cats
Can Cats Learn Tricks?
Cats Using Tools?
Thinking, Consciousness and Self-Awareness