Can you explain to me how this sentence uses cakes instead of cake?

Question

The fresh (cake cakes) tastes delicious

Answer 1

Singular:

The fresh cake tastes . . .

Plural:

The fresh cakes taste . . .

Answer 2

And for this sentence
The mice (eat eats) all the cheese.
How is it eat?

Answer 3

If it was singular would it be The mice eats all the cheese?

Answer 4

Mice is plural so it needs a plural verb -- eat.

The singular of mice is mouse. The mouse eats . . .

Answer 5

Taste