Cats are very intelligent animals with mature brains and complex behaviors. Through research, it is found that the IQ of cats is equivalent to that of children aged 2-3. This means that they can understand simple commands, remember some things in daily life, and have the basic ability to solve problems and adapt to the environment.

Cats also have a good memory, and can remember important things and places in daily life, such as the location of food and the voice of family members. In addition, cats can learn to use some simple tools, such as ringing the doorbell to ask their owners to open the door.

However, cats' IQ is still limited. They can't perform complex mathematical operations or solve abstract problems. It also needs the guidance and care of human owners to ensure their quality of life.