If we're talking about Lewis Carroll's version found in Through the Looking Glass, which reads:
Humpty Dumpty sat on a wall
Humpty Dumpty had a great fall
All the King's horses and all the King's men
Couldn't put Humpty Dumpty in his place again.
Two proper nouns are used five times in all (Humpty Dumpty, King) and five nouns are used once each. (wall, fall, horses, men, place)
That's for the entire poem, though. For the sentence given in the question one proper noun is used twice (Humpty Dumpty) and two nouns are used once each. (wall, fall)
There are five nouns in the sentence: Humpty, Dumpty, wall, fall, and great.
Those are technically two sentences, but total there are 2 common nouns: "fall" and "wall"
The nouns in the sentence are:OdysseyHomerprotagonistOdysseusclevernesscouragegiantPolyphemus
The nouns in the sentence are:thingsgrandfathertempervoice
There are three nouns, two of them abstract nouns. Loyalty, honesty and friend are all nouns.
The nouns in your sentence are group, nouns, and sentence.
The abstract nouns in the sentence are:Odysseyprotagonistclevernesscourage
The nouns in the sentence are Louisa May Alcott, author, and American.
The two nouns, 'nouns' and 'sentence' are placed correctly in your sentence.
In the question above, nouns and sentence are the only nouns. Neither of which are proper nouns.
The nouns in the sentence are frogs, place, and place.
The abstract nouns in the sentence are education and defense.
Proper nouns in the sentence are "The Odyssey," "Homer," "Odysseus," and "Polyphemus."