What is Intelligence?

Scientists debate what "intelligence" means.
We agree that normal healthy adult humans are "intelligent". But after that, it gets vaguer.
Here are some questions you are encouraged to debate.
There is no "correct" answer.

Are you intelligent now?

Were you intelligent when you were 17 years old?

Were you intelligent when you were 15 years old?

Were you intelligent when you were 10 years old?

Were you intelligent when you were 5 years old?

Were you intelligent when you were 2 years old?

Were you intelligent when you were 1 year old?

Were you intelligent when you were 6 months old?

Were you intelligent when you were a newborn?

Were you intelligent when you were a 6 month foetus?

Were you intelligent when you were a 3 month embryo?

Were you intelligent when you were a 1 month embryo?

If you are intelligent now, and once you were not, when exactly did you become intelligent?

Were the first farmers intelligent?

Were the Cro-Magnons intelligent?

Were the archaic H.sapiens intelligent?

Was H.neanderthalensis intelligent?

Was H.erectus intelligent?

Was H.habilis intelligent?

Were the Australopiths intelligent?

Is a chimpanzee intelligent?

Are monkeys intelligent?

Are dogs intelligent?

Are cows intelligent?

Are rats intelligent?

Are spiders intelligent?

Ayumu, the chimp that beat adult humans on memory tests, 2007.
Also here.

Crows use traffic to break open nuts.

Chimp using Instagram, 2019.