"How many sons do you guys have?"

Translation: 你们有几个儿子？

[Jason137255]

What about: 你们有儿子多少?

[yotam180]

What about 男子? Is it somehow used?

[Tematrilia]

Any reason for the word order? I wrote: 你们有儿子几个? but it got marked wrong

[Rieerie]

Numeral-classifiers (for e.g. 几个 or 一个) are always placed before nouns (儿子)

[Sue569775]

I cannot imagine using "you guys" to imply that I am speaking to more than one person, especially to a group of ladies! "You all" in my opinion, is a better choice of words for me to use.