cryptic nursery rhymes and songs

[whurules]

any help with last few appreciated. 1) noblemans dilemma(thought this one might be grand old duke of york) 2) welcome for a hero, 3)body map 4) cowboy builder(maybe the house that jack built) thanks for any help xx

[DSJ]

Are numbers of letters given?

[whurules]

no sorry, no number of words or letters given

[Trussell]

There's a song about Johnny's come home again, hurrah,hurrah! but I cannot remember the exact beginning - you might be able to google it (for no2)
Could the cowboy builder be anything to do with the 3 little pigs' houses being blown down with a huff & a puff?

[boxtops]

could 3 be the skeleton song (leg bones attaching to the ankle bones, etc.)?

[Bobbisox]

the song is called When Johnny comes Marching Home Again

[whurules]

thankyou for all the suggestions