Dementia prevention quiz! korean game!

There are quizzes that help prevent dementia. It's a popular game in Korea. Make it fun.

Please solve the dementia prevention quiz. (korean game)

Look for 24 triangles.

1. How much do rabbits, cats, and dogs weight?

2. What's the total weight in the fourth picture?

What are the numbers under the red and blue cars? Try to deduce the rules of numbers.

Which number will go into the question mark?