Spanish nouns

Question 1

masculine

Answer 1

nouns that end in -o

Question 2

feminine

Answer 2

nouns that end in -a

Question 3

masculine exceptions

Answer 3

nouns that end in -ma
or consonants other than -d or -z e.g color

Question 4

feminine exceptions

Answer 4

nouns that end in -d, -z and -ion

Question 5

how to make nouns plural

Answer 5

if noun ends in vowel add -s to the end
if noun ends in consonant add -es to the end
if ends in -z remove -z and add -ces